STAVANGER STAR

IMO 9984871

Vessel information

Vessel Name STAVANGER STAR
IMO Number 9984871
MMSI 538011321
Vessel Type Tanker
Flag 🏳️ Marshall Is
Call Sign V7A6956
Length 250 m
Beam 44 m

Detected Events (100)

Zone Dwell Augusta, Sicily STS Zone
Sep 25, 2026 10:08 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 1h 5m
  • Data Points: 23 AIS positions
  • Period: 2026-09-25T10:08:02+00:00 to 2026-09-25T11:13:47+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 65.7999999999999971578290569595992565155029296875,
    "points_in_zone": 23,
    "first_point": {
        "ts": "2026-09-25T10:08:02+00:00",
        "lat": 37.1150166999999981953806127421557903289794921875,
        "lon": 15.268196700000000731733962311409413814544677734375
    },
    "last_point": {
        "ts": "2026-09-25T11:13:47+00:00",
        "lat": 37.08951669999999722904249210841953754425048828125,
        "lon": 15.4592916999999996363612808636389672756195068359375
    }
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 25, 2026 09:24 UTC 62/100 ▼
Vessel A: IMO 9791145 (KIMOLOS) Marshall Is
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 133 meters
  • Average Distance: 161 meters
  • Duration: 54 minutes
  • Period: 2026-09-25T09:24:16+00:00 to 2026-09-25T10:18:16+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.3 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 62/100

Moderate-confidence STS candidate. Two tankers (KIMOLOS and STAVANGER STAR) maintained close proximity (min 133m, avg 161m) for 54 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). Moderate distance variation observed during the encounter. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 133m, avg 161m
Duration10/25Duration 54 minutes
Speed Stability14/20both nearly stationary; somewhat variable speeds
Distance Consistency8/15Distance variance ±56m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007774,
        "imo": 9791145,
        "name": "KIMOLOS",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 132.599999999999994315658113919198513031005859375,
    "avg_distance_m": 160.599999999999994315658113919198513031005859375,
    "distance_consistency_m": 55.5,
    "duration_minutes": 54,
    "overlap_duration_s": 3240,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.59999999999999997779553950749686919152736663818359375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.299999999999999988897769753748434595763683319091796875,
            "max_sog": 1.5
        }
    },
    "time_window": {
        "start": "2026-09-25T09:24:16+00:00",
        "end": "2026-09-25T10:18:16+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 62,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 133m, avg 161m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 54 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b156m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (KIMOLOS and STAVANGER STAR) maintained close proximity (min 133m, avg 161m) for 54 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). Moderate distance variation observed during the encounter. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 25, 2026 09:22 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 1h 50m
  • Data Points: 31 AIS positions
  • Period: 2026-09-25T09:22:58+00:00 to 2026-09-25T11:13:47+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 110.7999999999999971578290569595992565155029296875,
    "points_in_zone": 31,
    "first_point": {
        "ts": "2026-09-25T09:22:58+00:00",
        "lat": 37.1150999999999982037479639984667301177978515625,
        "lon": 15.268183300000000457430360256694257259368896484375
    },
    "last_point": {
        "ts": "2026-09-25T11:13:47+00:00",
        "lat": 37.08951669999999722904249210841953754425048828125,
        "lon": 15.4592916999999996363612808636389672756195068359375
    }
}
Methodology: 2026.01.18
Sts🛰️? Augusta, Sicily STS Zone
Sep 25, 2026 09:14 UTC 60/100 ▼
Vessel A: IMO 9507764 (GAS HUSKY) Liberia
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 444 meters
  • Average Distance: 446 meters
  • Duration: 45 minutes
  • Period: 2026-09-25T09:14:40+00:00 to 2026-09-25T09:59:42+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 60/100

Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 444m, avg 446m) for 45 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 444m, avg 446m
Duration10/25Duration 45 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260925T045551_20260925T045616_009599_0131A6_5B6F_COG • Acquired: 2026-09-25T04:55:51.061230Z • Platform: sentinel-1c

Searched: 2026-09-25T10:30:22.024477+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 444.30000000000001136868377216160297393798828125,
    "avg_distance_m": 445.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 1.3000000000000000444089209850062616169452667236328125,
    "duration_minutes": 45,
    "overlap_duration_s": 2702,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-25T09:14:40+00:00",
        "end": "2026-09-25T09:59:42+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 444m, avg 446m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 45 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 444m, avg 446m) for 45 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 37.1143107999999983803718350827693939208984375,
            "lon": 15.2658772000000002577735358499921858310699462890625
        },
        "time_window": {
            "start_ts": "2026-09-25T09:14:40+00:00",
            "end_ts": "2026-09-25T09:59:42+00:00"
        },
        "searched_at": "2026-09-25T10:30:22.024477+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260925T045551_20260925T045616_009599_0131A6_5B6F_COG",
        "scene_datetime": "2026-09-25T04:55:51.061230Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 14.99487500000000039790393202565610408782958984375,
            "min_lat": 36.3673900000000003274180926382541656494140625,
            "max_lon": 18.274961000000001121179593610577285289764404296875,
            "max_lat": 38.2829320000000024037944967858493328094482421875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1387697_thumbnail_20260925103025.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1387697_thumbnail_20260925103025.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts🛰️? Augusta, Sicily STS Zone
Sep 25, 2026 08:26 UTC 70/100 ▼
Vessel A: IMO 9984871 (STAVANGER STAR) Marshall Is
Vessel B: IMO 9507764 (GAS HUSKY) Liberia
  • Minimum Distance: 437 meters
  • Average Distance: 445 meters
  • Duration: 1h 42m
  • Period: 2026-09-25T08:26:01+00:00 to 2026-09-25T10:08:02+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (STAVANGER STAR and GAS HUSKY) maintained close proximity (min 437m, avg 445m) for 102 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 437m, avg 445m
Duration20/25Duration 102 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±4m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260925T045551_20260925T045616_009599_0131A6_5B6F_COG • Acquired: 2026-09-25T04:55:51.061230Z • Platform: sentinel-1c

Searched: 2026-09-25T15:00:01.900904+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "min_distance_m": 437.3999999999999772626324556767940521240234375,
    "avg_distance_m": 444.8999999999999772626324556767940521240234375,
    "distance_consistency_m": 3.5,
    "duration_minutes": 102,
    "overlap_duration_s": 6121,
    "speed_a_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_a_std": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-25T08:26:01+00:00",
        "end": "2026-09-25T10:08:02+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 437m, avg 445m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 102 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b14m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STAVANGER STAR and GAS HUSKY) maintained close proximity (min 437m, avg 445m) for 102 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 37.1143090999999998302882886491715908050537109375,
            "lon": 15.2658810999999996482756614568643271923065185546875
        },
        "time_window": {
            "start_ts": "2026-09-25T08:26:01+00:00",
            "end_ts": "2026-09-25T10:08:02+00:00"
        },
        "searched_at": "2026-09-25T15:00:01.900904+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260925T045551_20260925T045616_009599_0131A6_5B6F_COG",
        "scene_datetime": "2026-09-25T04:55:51.061230Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 14.99487500000000039790393202565610408782958984375,
            "min_lat": 36.3673900000000003274180926382541656494140625,
            "max_lon": 18.274961000000001121179593610577285289764404296875,
            "max_lat": 38.2829320000000024037944967858493328094482421875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1389111_thumbnail_20260925150006.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1389111_thumbnail_20260925150006.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 25, 2026 08:04 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 3h 8m
  • Data Points: 37 AIS positions
  • Period: 2026-09-25T08:04:57+00:00 to 2026-09-25T11:13:47+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 188.80000000000001136868377216160297393798828125,
    "points_in_zone": 37,
    "first_point": {
        "ts": "2026-09-25T08:04:57+00:00",
        "lat": 37.11508500000000054797055781818926334381103515625,
        "lon": 15.2681766999999997125314621371217072010040283203125
    },
    "last_point": {
        "ts": "2026-09-25T11:13:47+00:00",
        "lat": 37.08951669999999722904249210841953754425048828125,
        "lon": 15.4592916999999996363612808636389672756195068359375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 25, 2026 08:04 UTC 75.0% ▼
  • Duration: 2h 3m
  • Radius: 1,123 meters
  • Data Points: 16 AIS positions
  • Centroid: 37.1156, 15.2695
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 1122.5,
    "duration_minutes": 123,
    "points": 16,
    "centroid": {
        "lat": 37.115612400000003390232450328767299652099609375,
        "lon": 15.2694860437500015137857189984060823917388916015625
    },
    "bbox": {
        "min_lat": 37.1150166999999981953806127421557903289794921875,
        "min_lon": 15.2681599999999999539568307227455079555511474609375,
        "max_lat": 37.12051000000000300360625260509550571441650390625,
        "max_lon": 15.2805367000000007493554221582598984241485595703125
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 25, 2026 08:00 UTC 84/100 ▼
Vessel A: IMO 9984871 (STAVANGER STAR) Marshall Is
Vessel B: IMO 9791145 (KIMOLOS) Marshall Is
  • Minimum Distance: 131 meters
  • Average Distance: 145 meters
  • Duration: 2h 9m
  • Period: 2026-09-25T08:04:57+00:00 to 2026-09-25T10:14:01+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 84/100

High-confidence STS candidate. Two tankers (STAVANGER STAR and KIMOLOS) maintained close proximity (min 131m, avg 145m) for 129 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 131m, avg 145m
Duration25/25Duration 129 minutes
Speed Stability17/20both nearly stationary; stable speeds
Distance Consistency12/15Distance variance ±34m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538007774,
        "imo": 9791145,
        "name": "KIMOLOS",
        "flag": "Marshall Is"
    },
    "min_distance_m": 131.30000000000001136868377216160297393798828125,
    "avg_distance_m": 144.900000000000005684341886080801486968994140625,
    "distance_consistency_m": 34.5,
    "duration_minutes": 129.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 7744,
    "speed_a_avg": 0.11000000000000000055511151231257827021181583404541015625,
    "speed_a_std": 0.38000000000000000444089209850062616169452667236328125,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.11000000000000000055511151231257827021181583404541015625,
            "max_sog": 1.5
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-09-25T08:04:57+00:00",
        "end": "2026-09-25T10:14:01+00:00"
    },
    "points_count": {
        "vessel_a": 16,
        "vessel_b": 16
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 84,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 131m, avg 145m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 129 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b134m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (STAVANGER STAR and KIMOLOS) maintained close proximity (min 131m, avg 145m) for 129 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 25, 2026 07:15 UTC 84/100 ▼
Vessel A: IMO 9984871 (STAVANGER STAR) Marshall Is
Vessel B: IMO 9791145 (KIMOLOS) Marshall Is
  • Minimum Distance: 131 meters
  • Average Distance: 143 meters
  • Duration: 2h 57m
  • Period: 2026-09-25T07:17:00+00:00 to 2026-09-25T10:14:01+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 84/100

High-confidence STS candidate. Two tankers (STAVANGER STAR and KIMOLOS) maintained close proximity (min 131m, avg 143m) for 177 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 131m, avg 143m
Duration25/25Duration 177 minutes
Speed Stability17/20both nearly stationary; stable speeds
Distance Consistency12/15Distance variance ±30m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538007774,
        "imo": 9791145,
        "name": "KIMOLOS",
        "flag": "Marshall Is"
    },
    "min_distance_m": 131.30000000000001136868377216160297393798828125,
    "avg_distance_m": 142.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 30.10000000000000142108547152020037174224853515625,
    "duration_minutes": 177,
    "overlap_duration_s": 10621,
    "speed_a_avg": 0.0899999999999999966693309261245303787291049957275390625,
    "speed_a_std": 0.330000000000000015543122344752191565930843353271484375,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.0899999999999999966693309261245303787291049957275390625,
            "max_sog": 1.5
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-09-25T07:17:00+00:00",
        "end": "2026-09-25T10:14:01+00:00"
    },
    "points_count": {
        "vessel_a": 21,
        "vessel_b": 21
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 84,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 131m, avg 143m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 177 minutes"
            },
            "speed_stability": {
                "score": 17,
                "max": 20,
                "detail": "both nearly stationary; stable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b130m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (STAVANGER STAR and KIMOLOS) maintained close proximity (min 131m, avg 143m) for 177 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 25, 2026 07:07 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 4h 5m
  • Data Points: 44 AIS positions
  • Period: 2026-09-25T07:07:58+00:00 to 2026-09-25T11:13:47+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 245.80000000000001136868377216160297393798828125,
    "points_in_zone": 44,
    "first_point": {
        "ts": "2026-09-25T07:07:58+00:00",
        "lat": 37.1151033000000012407326721586287021636962890625,
        "lon": 15.2681816999999995232428773306310176849365234375
    },
    "last_point": {
        "ts": "2026-09-25T11:13:47+00:00",
        "lat": 37.08951669999999722904249210841953754425048828125,
        "lon": 15.4592916999999996363612808636389672756195068359375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 25, 2026 07:07 UTC 75.0% ▼
  • Duration: 3h 13m
  • Radius: 624 meters
  • Data Points: 24 AIS positions
  • Centroid: 37.1152, 15.2685
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 623.700000000000045474735088646411895751953125,
    "duration_minutes": 193.19999999999998863131622783839702606201171875,
    "points": 24,
    "centroid": {
        "lat": 37.11521618333332384054301655851304531097412109375,
        "lon": 15.2685391666666649967964985989965498447418212890625
    },
    "bbox": {
        "min_lat": 37.1150166999999981953806127421557903289794921875,
        "min_lon": 15.2681599999999999539568307227455079555511474609375,
        "max_lat": 37.1177500000000009094947017729282379150390625,
        "max_lon": 15.2748033000000003056584318983368575572967529296875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 25, 2026 07:05 UTC 75/100 ▼
Vessel A: IMO 9984871 (STAVANGER STAR) Marshall Is
Vessel B: IMO 9507764 (GAS HUSKY) Liberia
  • Minimum Distance: 437 meters
  • Average Distance: 445 meters
  • Duration: 2h 51m
  • Period: 2026-09-25T07:17:00+00:00 to 2026-09-25T10:08:02+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (STAVANGER STAR and GAS HUSKY) maintained close proximity (min 437m, avg 445m) for 171 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 437m, avg 445m
Duration25/25Duration 171 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "min_distance_m": 437.3999999999999772626324556767940521240234375,
    "avg_distance_m": 445.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 171,
    "overlap_duration_s": 10262,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.070000000000000006661338147750939242541790008544921875,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-25T07:17:00+00:00",
        "end": "2026-09-25T10:08:02+00:00"
    },
    "points_count": {
        "vessel_a": 20,
        "vessel_b": 20
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 437m, avg 445m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 171 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STAVANGER STAR and GAS HUSKY) maintained close proximity (min 437m, avg 445m) for 171 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 25, 2026 06:20 UTC 75/100 ▼
Vessel A: IMO 9984871 (STAVANGER STAR) Marshall Is
Vessel B: IMO 9507764 (GAS HUSKY) Liberia
  • Minimum Distance: 437 meters
  • Average Distance: 445 meters
  • Duration: 3h 45m
  • Period: 2026-09-25T06:22:59+00:00 to 2026-09-25T10:08:02+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (STAVANGER STAR and GAS HUSKY) maintained close proximity (min 437m, avg 445m) for 225 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 437m, avg 445m
Duration25/25Duration 225 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "min_distance_m": 437.3999999999999772626324556767940521240234375,
    "avg_distance_m": 444.8999999999999772626324556767940521240234375,
    "distance_consistency_m": 2.5,
    "duration_minutes": 225.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 13503,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.059999999999999997779553950749686919152736663818359375,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-25T06:22:59+00:00",
        "end": "2026-09-25T10:08:02+00:00"
    },
    "points_count": {
        "vessel_a": 28,
        "vessel_b": 28
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 437m, avg 445m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 225 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STAVANGER STAR and GAS HUSKY) maintained close proximity (min 437m, avg 445m) for 225 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts🛰️? Augusta, Sicily STS Zone
Sep 25, 2026 06:06 UTC 90/100 ▼
Vessel A: IMO 9984871 (STAVANGER STAR) Marshall Is
Vessel B: IMO 9791145 (KIMOLOS) Marshall Is
  • Minimum Distance: 131 meters
  • Average Distance: 141 meters
  • Duration: 3h 57m
  • Period: 2026-09-25T06:16:58+00:00 to 2026-09-25T10:14:01+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (STAVANGER STAR and KIMOLOS) maintained close proximity (min 131m, avg 141m) for 237 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 131m, avg 141m
Duration25/25Duration 237 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±25m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260925T045551_20260925T045616_009599_0131A6_5B6F_COG • Acquired: 2026-09-25T04:55:51.061230Z • Platform: sentinel-1c

Searched: 2026-09-25T12:30:02.230322+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538007774,
        "imo": 9791145,
        "name": "KIMOLOS",
        "flag": "Marshall Is"
    },
    "min_distance_m": 131.30000000000001136868377216160297393798828125,
    "avg_distance_m": 140.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 25.300000000000000710542735760100185871124267578125,
    "duration_minutes": 237.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 14223,
    "speed_a_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.2800000000000000266453525910037569701671600341796875,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 1.5
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-09-25T06:16:58+00:00",
        "end": "2026-09-25T10:14:01+00:00"
    },
    "points_count": {
        "vessel_a": 30,
        "vessel_b": 30
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 131m, avg 141m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 237 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b125m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (STAVANGER STAR and KIMOLOS) maintained close proximity (min 131m, avg 141m) for 237 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 37.115509500000001708031049929559230804443359375,
            "lon": 15.267617200000000110549081000499427318572998046875
        },
        "time_window": {
            "start_ts": "2026-09-25T06:06:16+00:00",
            "end_ts": "2026-09-25T07:48:16+00:00"
        },
        "searched_at": "2026-09-25T12:30:02.230322+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260925T045551_20260925T045616_009599_0131A6_5B6F_COG",
        "scene_datetime": "2026-09-25T04:55:51.061230Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 14.99487500000000039790393202565610408782958984375,
            "min_lat": 36.3673900000000003274180926382541656494140625,
            "max_lon": 18.274961000000001121179593610577285289764404296875,
            "max_lat": 38.2829320000000024037944967858493328094482421875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1388280_thumbnail_20260925123012.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1388280_thumbnail_20260925123012.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 25, 2026 06:04 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 5h 8m
  • Data Points: 52 AIS positions
  • Period: 2026-09-25T06:04:57+00:00 to 2026-09-25T11:13:47+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 308.80000000000001136868377216160297393798828125,
    "points_in_zone": 52,
    "first_point": {
        "ts": "2026-09-25T06:04:57+00:00",
        "lat": 37.11508169999999751098584965802729129791259765625,
        "lon": 15.2681766999999997125314621371217072010040283203125
    },
    "last_point": {
        "ts": "2026-09-25T11:13:47+00:00",
        "lat": 37.08951669999999722904249210841953754425048828125,
        "lon": 15.4592916999999996363612808636389672756195068359375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 25, 2026 06:04 UTC 75.0% ▼
  • Duration: 4h 16m
  • Radius: 632 meters
  • Data Points: 32 AIS positions
  • Centroid: 37.1152, 15.2684
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 632.299999999999954525264911353588104248046875,
    "duration_minutes": 256.19999999999998863131622783839702606201171875,
    "points": 32,
    "centroid": {
        "lat": 37.115185781250005447873263619840145111083984375,
        "lon": 15.268449743750000635600372334010899066925048828125
    },
    "bbox": {
        "min_lat": 37.1150166999999981953806127421557903289794921875,
        "min_lon": 15.26815500000000014324541552923619747161865234375,
        "max_lat": 37.1177500000000009094947017729282379150390625,
        "max_lon": 15.2748033000000003056584318983368575572967529296875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 25, 2026 05:58 UTC 90/100 ▼
Vessel A: IMO 9984871 (STAVANGER STAR) Marshall Is
Vessel B: IMO 9791145 (KIMOLOS) Marshall Is
  • Minimum Distance: 131 meters
  • Average Distance: 140 meters
  • Duration: 4h 15m
  • Period: 2026-09-25T05:58:58+00:00 to 2026-09-25T10:14:01+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (STAVANGER STAR and KIMOLOS) maintained close proximity (min 131m, avg 140m) for 255 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 131m, avg 140m
Duration25/25Duration 255 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±24m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538007774,
        "imo": 9791145,
        "name": "KIMOLOS",
        "flag": "Marshall Is"
    },
    "min_distance_m": 131.30000000000001136868377216160297393798828125,
    "avg_distance_m": 140.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 24.300000000000000710542735760100185871124267578125,
    "duration_minutes": 255.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 15303,
    "speed_a_avg": 0.059999999999999997779553950749686919152736663818359375,
    "speed_a_std": 0.270000000000000017763568394002504646778106689453125,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.059999999999999997779553950749686919152736663818359375,
            "max_sog": 1.5
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-09-25T05:58:58+00:00",
        "end": "2026-09-25T10:14:01+00:00"
    },
    "points_count": {
        "vessel_a": 32,
        "vessel_b": 32
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 131m, avg 140m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 255 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b124m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (STAVANGER STAR and KIMOLOS) maintained close proximity (min 131m, avg 140m) for 255 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts🛰️? Augusta, Sicily STS Zone
Sep 25, 2026 05:10 UTC 75/100 ▼
Vessel A: IMO 9984871 (STAVANGER STAR) Marshall Is
Vessel B: IMO 9507764 (GAS HUSKY) Liberia
  • Minimum Distance: 437 meters
  • Average Distance: 445 meters
  • Duration: 4h 57m
  • Period: 2026-09-25T05:10:55+00:00 to 2026-09-25T10:08:02+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (STAVANGER STAR and GAS HUSKY) maintained close proximity (min 437m, avg 444m) for 297 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 437m, avg 444m
Duration25/25Duration 297 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260925T045551_20260925T045616_009599_0131A6_5B6F_COG • Acquired: 2026-09-25T04:55:51.061230Z • Platform: sentinel-1c

Searched: 2026-09-25T11:45:06.993581+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "min_distance_m": 437.3999999999999772626324556767940521240234375,
    "avg_distance_m": 444.5,
    "distance_consistency_m": 2.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 297.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 17827,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-25T05:10:55+00:00",
        "end": "2026-09-25T10:08:02+00:00"
    },
    "points_count": {
        "vessel_a": 38,
        "vessel_b": 38
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 437m, avg 444m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 297 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STAVANGER STAR and GAS HUSKY) maintained close proximity (min 437m, avg 444m) for 297 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 37.1143071999999989429852575995028018951416015625,
            "lon": 15.2658854000000001605030774953775107860565185546875
        },
        "time_window": {
            "start_ts": "2026-09-25T05:10:55+00:00",
            "end_ts": "2026-09-25T10:08:02+00:00"
        },
        "searched_at": "2026-09-25T11:45:06.993581+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260925T045551_20260925T045616_009599_0131A6_5B6F_COG",
        "scene_datetime": "2026-09-25T04:55:51.061230Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 14.99487500000000039790393202565610408782958984375,
            "min_lat": 36.3673900000000003274180926382541656494140625,
            "max_lon": 18.274961000000001121179593610577285289764404296875,
            "max_lat": 38.2829320000000024037944967858493328094482421875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1388229_thumbnail_20260925114511.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1388229_thumbnail_20260925114511.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 25, 2026 05:01 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 11m
  • Data Points: 61 AIS positions
  • Period: 2026-09-25T05:01:56+00:00 to 2026-09-25T11:13:47+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 371.8999999999999772626324556767940521240234375,
    "points_in_zone": 61,
    "first_point": {
        "ts": "2026-09-25T05:01:56+00:00",
        "lat": 37.1150949999999966166797094047069549560546875,
        "lon": 15.26814830000000000609361450187861919403076171875
    },
    "last_point": {
        "ts": "2026-09-25T11:13:47+00:00",
        "lat": 37.08951669999999722904249210841953754425048828125,
        "lon": 15.4592916999999996363612808636389672756195068359375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 25, 2026 05:01 UTC 75.0% ▼
  • Duration: 5h 19m
  • Radius: 638 meters
  • Data Points: 41 AIS positions
  • Centroid: 37.1152, 15.2684
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 638.1000000000000227373675443232059478759765625,
    "duration_minutes": 319.19999999999998863131622783839702606201171875,
    "points": 41,
    "centroid": {
        "lat": 37.11516800731707377281054505147039890289306640625,
        "lon": 15.2683885804878087810720899142324924468994140625
    },
    "bbox": {
        "min_lat": 37.1150166999999981953806127421557903289794921875,
        "min_lon": 15.26814830000000000609361450187861919403076171875,
        "max_lat": 37.1177500000000009094947017729282379150390625,
        "max_lon": 15.2748033000000003056584318983368575572967529296875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 25, 2026 04:44 UTC 75/100 ▼
Vessel A: IMO 9984871 (STAVANGER STAR) Marshall Is
Vessel B: IMO 9507764 (GAS HUSKY) Liberia
  • Minimum Distance: 437 meters
  • Average Distance: 444 meters
  • Duration: 5h 24m
  • Period: 2026-09-25T04:44:01+00:00 to 2026-09-25T10:08:02+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (STAVANGER STAR and GAS HUSKY) maintained close proximity (min 437m, avg 444m) for 324 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 437m, avg 444m
Duration25/25Duration 324 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "min_distance_m": 437.3999999999999772626324556767940521240234375,
    "avg_distance_m": 444.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 2.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 324,
    "overlap_duration_s": 19441,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-25T04:44:01+00:00",
        "end": "2026-09-25T10:08:02+00:00"
    },
    "points_count": {
        "vessel_a": 41,
        "vessel_b": 41
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 437m, avg 444m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 324 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STAVANGER STAR and GAS HUSKY) maintained close proximity (min 437m, avg 444m) for 324 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts🛰️? Augusta, Sicily STS Zone
Sep 25, 2026 04:27 UTC 90/100 ▼
Vessel A: IMO 9791145 (KIMOLOS) Marshall Is
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 130 meters
  • Average Distance: 135 meters
  • Duration: 3h 21m
  • Period: 2026-09-25T04:27:16+00:00 to 2026-09-25T07:48:16+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (KIMOLOS and STAVANGER STAR) maintained close proximity (min 130m, avg 135m) for 201 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 130m, avg 135m
Duration25/25Duration 201 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260925T045551_20260925T045616_009599_0131A6_5B6F_COG • Acquired: 2026-09-25T04:55:51.061230Z • Platform: sentinel-1c

Searched: 2026-09-25T10:45:12.867258+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007774,
        "imo": 9791145,
        "name": "KIMOLOS",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 130.400000000000005684341886080801486968994140625,
    "avg_distance_m": 134.599999999999994315658113919198513031005859375,
    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 201,
    "overlap_duration_s": 12060,
    "speed_a_avg": 0,
    "speed_a_std": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-25T04:27:16+00:00",
        "end": "2026-09-25T07:48:16+00:00"
    },
    "points_count": {
        "vessel_a": 29,
        "vessel_b": 29
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 130m, avg 135m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 201 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KIMOLOS and STAVANGER STAR) maintained close proximity (min 130m, avg 135m) for 201 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 37.1155085999999982959707267582416534423828125,
            "lon": 15.267615400000000391855792258866131305694580078125
        },
        "time_window": {
            "start_ts": "2026-09-25T04:27:16+00:00",
            "end_ts": "2026-09-25T07:48:16+00:00"
        },
        "searched_at": "2026-09-25T10:45:12.867258+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260925T045551_20260925T045616_009599_0131A6_5B6F_COG",
        "scene_datetime": "2026-09-25T04:55:51.061230Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 14.99487500000000039790393202565610408782958984375,
            "min_lat": 36.3673900000000003274180926382541656494140625,
            "max_lon": 18.274961000000001121179593610577285289764404296875,
            "max_lat": 38.2829320000000024037944967858493328094482421875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1387928_thumbnail_20260925104516.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1387928_thumbnail_20260925104516.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 25, 2026 04:08 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 29m
  • Data Points: 63 AIS positions
  • Period: 2026-09-25T04:44:01+00:00 to 2026-09-25T11:13:47+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 389.80000000000001136868377216160297393798828125,
    "points_in_zone": 63,
    "first_point": {
        "ts": "2026-09-25T04:44:01+00:00",
        "lat": 37.1151066999999983408997650258243083953857421875,
        "lon": 15.2681567000000004696858013630844652652740478515625
    },
    "last_point": {
        "ts": "2026-09-25T11:13:47+00:00",
        "lat": 37.08951669999999722904249210841953754425048828125,
        "lon": 15.4592916999999996363612808636389672756195068359375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 25, 2026 04:08 UTC 75.0% ▼
  • Duration: 6h 13m
  • Radius: 641 meters
  • Data Points: 49 AIS positions
  • Centroid: 37.1152, 15.2684
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 641.3999999999999772626324556767940521240234375,
    "duration_minutes": 373.1000000000000227373675443232059478759765625,
    "points": 49,
    "centroid": {
        "lat": 37.11515795714285559370182454586029052734375,
        "lon": 15.2683527224489790086181528749875724315643310546875
    },
    "bbox": {
        "min_lat": 37.1150166999999981953806127421557903289794921875,
        "min_lon": 15.2681433000000001953821993083693087100982666015625,
        "max_lat": 37.1177500000000009094947017729282379150390625,
        "max_lon": 15.2748033000000003056584318983368575572967529296875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 25, 2026 03:34 UTC 75/100 ▼
Vessel A: IMO 9507764 (GAS HUSKY) Liberia
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 438 meters
  • Average Distance: 444 meters
  • Duration: 5h 12m
  • Period: 2026-09-25T03:41:36+00:00 to 2026-09-25T08:53:34+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 438m, avg 444m) for 312 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 438m, avg 444m
Duration25/25Duration 312 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 437.80000000000001136868377216160297393798828125,
    "avg_distance_m": 444,
    "distance_consistency_m": 2.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 312,
    "overlap_duration_s": 18718,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-25T03:41:36+00:00",
        "end": "2026-09-25T08:53:34+00:00"
    },
    "points_count": {
        "vessel_a": 38,
        "vessel_b": 38
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 438m, avg 444m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 312 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 438m, avg 444m) for 312 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 25, 2026 03:04 UTC 90/100 ▼
Vessel A: IMO 9791145 (KIMOLOS) Marshall Is
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 130 meters
  • Average Distance: 134 meters
  • Duration: 4h 30m
  • Period: 2026-09-25T03:18:16+00:00 to 2026-09-25T07:48:16+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (KIMOLOS and STAVANGER STAR) maintained close proximity (min 130m, avg 134m) for 270 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 130m, avg 134m
Duration25/25Duration 270 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007774,
        "imo": 9791145,
        "name": "KIMOLOS",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 130.19999999999998863131622783839702606201171875,
    "avg_distance_m": 134.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 270,
    "overlap_duration_s": 16200,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-25T03:18:16+00:00",
        "end": "2026-09-25T07:48:16+00:00"
    },
    "points_count": {
        "vessel_a": 37,
        "vessel_b": 37
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 130m, avg 134m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 270 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KIMOLOS and STAVANGER STAR) maintained close proximity (min 130m, avg 134m) for 270 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 25, 2026 03:01 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 33m
  • Data Points: 52 AIS positions
  • Period: 2026-09-25T03:52:56+00:00 to 2026-09-25T10:25:56+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 393,
    "points_in_zone": 52,
    "first_point": {
        "ts": "2026-09-25T03:52:56+00:00",
        "lat": 37.11511169999999992796801961958408355712890625,
        "lon": 15.268183300000000457430360256694257259368896484375
    },
    "last_point": {
        "ts": "2026-09-25T10:25:56+00:00",
        "lat": 37.12051000000000300360625260509550571441650390625,
        "lon": 15.2805367000000007493554221582598984241485595703125
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 25, 2026 03:01 UTC 75.0% ▼
  • Duration: 6h 28m
  • Radius: 642 meters
  • Data Points: 51 AIS positions
  • Centroid: 37.1152, 15.2683
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 642.1000000000000227373675443232059478759765625,
    "duration_minutes": 388.19999999999998863131622783839702606201171875,
    "points": 51,
    "centroid": {
        "lat": 37.1151564039215600132592953741550445556640625,
        "lon": 15.2683455882352934196433125180192291736602783203125
    },
    "bbox": {
        "min_lat": 37.1150166999999981953806127421557903289794921875,
        "min_lon": 15.2681433000000001953821993083693087100982666015625,
        "max_lat": 37.1177500000000009094947017729282379150390625,
        "max_lon": 15.2748033000000003056584318983368575572967529296875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts🛰️? Augusta, Sicily STS Zone
Sep 25, 2026 02:44 UTC 75/100 ▼
Vessel A: IMO 9507764 (GAS HUSKY) Liberia
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 438 meters
  • Average Distance: 444 meters
  • Duration: 4h 30m
  • Period: 2026-09-25T02:44:38+00:00 to 2026-09-25T07:14:38+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 438m, avg 444m) for 270 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 438m, avg 444m
Duration25/25Duration 270 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260925T045551_20260925T045616_009599_0131A6_5B6F_COG • Acquired: 2026-09-25T04:55:51.061230Z • Platform: sentinel-1c

Searched: 2026-09-25T07:45:01.414662+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 437.69999999999998863131622783839702606201171875,
    "avg_distance_m": 443.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 2.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 270,
    "overlap_duration_s": 16200,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-25T02:44:38+00:00",
        "end": "2026-09-25T07:14:38+00:00"
    },
    "points_count": {
        "vessel_a": 28,
        "vessel_b": 28
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 438m, avg 444m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 270 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 438m, avg 444m) for 270 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 37.1143052999999980556822265498340129852294921875,
            "lon": 15.2658827000000005824631443829275667667388916015625
        },
        "time_window": {
            "start_ts": "2026-09-25T02:44:38+00:00",
            "end_ts": "2026-09-25T07:14:38+00:00"
        },
        "searched_at": "2026-09-25T07:45:01.414662+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260925T045551_20260925T045616_009599_0131A6_5B6F_COG",
        "scene_datetime": "2026-09-25T04:55:51.061230Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 14.99487500000000039790393202565610408782958984375,
            "min_lat": 36.3673900000000003274180926382541656494140625,
            "max_lon": 18.274961000000001121179593610577285289764404296875,
            "max_lat": 38.2829320000000024037944967858493328094482421875
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1386722_thumbnail_20260925074524.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1386722_thumbnail_20260925074524.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 25, 2026 02:13 UTC 90/100 ▼
Vessel A: IMO 9791145 (KIMOLOS) Marshall Is
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 130 meters
  • Average Distance: 134 meters
  • Duration: 5h 33m
  • Period: 2026-09-25T02:15:16+00:00 to 2026-09-25T07:48:16+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (KIMOLOS and STAVANGER STAR) maintained close proximity (min 130m, avg 134m) for 333 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 130m, avg 134m
Duration25/25Duration 333 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007774,
        "imo": 9791145,
        "name": "KIMOLOS",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 130.19999999999998863131622783839702606201171875,
    "avg_distance_m": 134.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 333,
    "overlap_duration_s": 19980,
    "speed_a_avg": 0,
    "speed_a_std": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-25T02:15:16+00:00",
        "end": "2026-09-25T07:48:16+00:00"
    },
    "points_count": {
        "vessel_a": 42,
        "vessel_b": 42
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 130m, avg 134m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 333 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KIMOLOS and STAVANGER STAR) maintained close proximity (min 130m, avg 134m) for 333 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 25, 2026 02:01 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 30m
  • Data Points: 57 AIS positions
  • Period: 2026-09-25T02:13:58+00:00 to 2026-09-25T08:44:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 390,
    "points_in_zone": 57,
    "first_point": {
        "ts": "2026-09-25T02:13:58+00:00",
        "lat": 37.11508500000000054797055781818926334381103515625,
        "lon": 15.268191699999999144665707717649638652801513671875
    },
    "last_point": {
        "ts": "2026-09-25T08:44:00+00:00",
        "lat": 37.11509670000000227219061343930661678314208984375,
        "lon": 15.2681599999999999539568307227455079555511474609375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 25, 2026 02:01 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 6 meters
  • Data Points: 57 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 390,
    "points": 57,
    "centroid": {
        "lat": 37.1150992087719231449227663688361644744873046875,
        "lon": 15.2681762842105239741385958041064441204071044921875
    },
    "bbox": {
        "min_lat": 37.1150549999999981309883878566324710845947265625,
        "min_lon": 15.2681433000000001953821993083693087100982666015625,
        "max_lat": 37.11513500000000220779838855378329753875732421875,
        "max_lon": 15.2682017000000005424453775049187242984771728515625
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 25, 2026 01:16 UTC 90/100 ▼
Vessel A: IMO 9791145 (KIMOLOS) Marshall Is
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 130 meters
  • Average Distance: 134 meters
  • Duration: 6 hours
  • Period: 2026-09-25T01:48:16+00:00 to 2026-09-25T07:48:16+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (KIMOLOS and STAVANGER STAR) maintained close proximity (min 130m, avg 134m) for 360 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 130m, avg 134m
Duration25/25Duration 360 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007774,
        "imo": 9791145,
        "name": "KIMOLOS",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 130.19999999999998863131622783839702606201171875,
    "avg_distance_m": 134.400000000000005684341886080801486968994140625,
    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 360,
    "overlap_duration_s": 21600,
    "speed_a_avg": 0,
    "speed_a_std": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-25T01:48:16+00:00",
        "end": "2026-09-25T07:48:16+00:00"
    },
    "points_count": {
        "vessel_a": 46,
        "vessel_b": 46
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 130m, avg 134m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 360 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KIMOLOS and STAVANGER STAR) maintained close proximity (min 130m, avg 134m) for 360 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 25, 2026 01:16 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 33m
  • Data Points: 58 AIS positions
  • Period: 2026-09-25T01:52:59+00:00 to 2026-09-25T08:26:01+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 393,
    "points_in_zone": 58,
    "first_point": {
        "ts": "2026-09-25T01:52:59+00:00",
        "lat": 37.115108300000002827800926752388477325439453125,
        "lon": 15.268191699999999144665707717649638652801513671875
    },
    "last_point": {
        "ts": "2026-09-25T08:26:01+00:00",
        "lat": 37.115098299999999653664417564868927001953125,
        "lon": 15.2681783000000006467189450631849467754364013671875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 25, 2026 01:16 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 6 meters
  • Data Points: 58 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 393,
    "points": 58,
    "centroid": {
        "lat": 37.11509916379310425327275879681110382080078125,
        "lon": 15.2681768103448316509229698567651212215423583984375
    },
    "bbox": {
        "min_lat": 37.1150549999999981309883878566324710845947265625,
        "min_lon": 15.2681433000000001953821993083693087100982666015625,
        "max_lat": 37.11513500000000220779838855378329753875732421875,
        "max_lon": 15.2682017000000005424453775049187242984771728515625
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts🛰️? Augusta, Sicily STS Zone
Sep 25, 2026 00:23 UTC 55/100 ▼
Vessel A: IMO 9984871 (STAVANGER STAR) Marshall Is
Vessel B: IMO 9507764 (GAS HUSKY) Liberia
  • Minimum Distance: 439 meters
  • Average Distance: 443 meters
  • Duration: 35 minutes
  • Period: 2026-09-25T00:23:02+00:00 to 2026-09-25T00:58:55+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 55/100

Low-confidence STS candidate - may warrant review. Two tankers (STAVANGER STAR and GAS HUSKY) maintained close proximity (min 439m, avg 443m) for 36 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 439m, avg 443m
Duration5/25Duration 36 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260924T165515_20260924T165540_009592_013168_F80C_COG • Acquired: 2026-09-24T16:55:15.731406Z • Platform: sentinel-1c

Searched: 2026-09-25T03:00:01.618730+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "min_distance_m": 439.1000000000000227373675443232059478759765625,
    "avg_distance_m": 443.19999999999998863131622783839702606201171875,
    "distance_consistency_m": 3,
    "duration_minutes": 35.89999999999999857891452847979962825775146484375,
    "overlap_duration_s": 2153,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-25T00:23:02+00:00",
        "end": "2026-09-25T00:58:55+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 439m, avg 443m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 36 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (STAVANGER STAR and GAS HUSKY) maintained close proximity (min 439m, avg 443m) for 36 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 37.11430589999999796191332279704511165618896484375,
            "lon": 15.2658781000000001171201802208088338375091552734375
        },
        "time_window": {
            "start_ts": "2026-09-25T00:23:02+00:00",
            "end_ts": "2026-09-25T00:58:55+00:00"
        },
        "searched_at": "2026-09-25T03:00:01.618730+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260924T165515_20260924T165540_009592_013168_F80C_COG",
        "scene_datetime": "2026-09-24T16:55:15.731406Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 14.0909250000000003666400516522116959095001220703125,
            "min_lat": 35.63781399999999877081791055388748645782470703125,
            "max_lon": 17.348804000000001224179868586361408233642578125,
            "max_lat": 37.55720900000000028740032576024532318115234375
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1385322_thumbnail_20260925030006.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1385322_thumbnail_20260925030006.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 25, 2026 00:02 UTC 90/100 ▼
Vessel A: IMO 9791145 (KIMOLOS) Marshall Is
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 130 meters
  • Average Distance: 134 meters
  • Duration: 6h 27m
  • Period: 2026-09-25T00:36:16+00:00 to 2026-09-25T07:03:16+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (KIMOLOS and STAVANGER STAR) maintained close proximity (min 130m, avg 134m) for 387 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 130m, avg 134m
Duration25/25Duration 387 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007774,
        "imo": 9791145,
        "name": "KIMOLOS",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 130.19999999999998863131622783839702606201171875,
    "avg_distance_m": 134.099999999999994315658113919198513031005859375,
    "distance_consistency_m": 1.6999999999999999555910790149937383830547332763671875,
    "duration_minutes": 387,
    "overlap_duration_s": 23220,
    "speed_a_avg": 0,
    "speed_a_std": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-25T00:36:16+00:00",
        "end": "2026-09-25T07:03:16+00:00"
    },
    "points_count": {
        "vessel_a": 46,
        "vessel_b": 46
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 130m, avg 134m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 387 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KIMOLOS and STAVANGER STAR) maintained close proximity (min 130m, avg 134m) for 387 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 25, 2026 00:02 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 30m
  • Data Points: 61 AIS positions
  • Period: 2026-09-25T00:52:56+00:00 to 2026-09-25T07:23:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 61,
    "first_point": {
        "ts": "2026-09-25T00:52:56+00:00",
        "lat": 37.11509000000000213503881241194903850555419921875,
        "lon": 15.268164999999999764668245916254818439483642578125
    },
    "last_point": {
        "ts": "2026-09-25T07:23:00+00:00",
        "lat": 37.1151100000000013778844731859862804412841796875,
        "lon": 15.2681866999999993339542925241403281688690185546875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 25, 2026 00:02 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 6 meters
  • Data Points: 61 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 61,
    "centroid": {
        "lat": 37.11509923278689626613413565792143344879150390625,
        "lon": 15.268175136065575969723795424215495586395263671875
    },
    "bbox": {
        "min_lat": 37.1150549999999981309883878566324710845947265625,
        "min_lon": 15.2681433000000001953821993083693087100982666015625,
        "max_lat": 37.11513500000000220779838855378329753875732421875,
        "max_lon": 15.26820000000000021600499167107045650482177734375
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 24, 2026 23:15 UTC 90/100 ▼
Vessel A: IMO 9791145 (KIMOLOS) Marshall Is
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 130 meters
  • Average Distance: 134 meters
  • Duration: 6h 9m
  • Period: 2026-09-24T23:27:16+00:00 to 2026-09-25T05:36:16+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (KIMOLOS and STAVANGER STAR) maintained close proximity (min 130m, avg 134m) for 369 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 130m, avg 134m
Duration25/25Duration 369 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007774,
        "imo": 9791145,
        "name": "KIMOLOS",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 130.19999999999998863131622783839702606201171875,
    "avg_distance_m": 134,
    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 369,
    "overlap_duration_s": 22140,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-24T23:27:16+00:00",
        "end": "2026-09-25T05:36:16+00:00"
    },
    "points_count": {
        "vessel_a": 42,
        "vessel_b": 42
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 130m, avg 134m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 369 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KIMOLOS and STAVANGER STAR) maintained close proximity (min 130m, avg 134m) for 369 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 24, 2026 23:10 UTC 75/100 ▼
Vessel A: IMO 9507764 (GAS HUSKY) Liberia
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 438 meters
  • Average Distance: 444 meters
  • Duration: 6h 15m
  • Period: 2026-09-24T23:14:35+00:00 to 2026-09-25T05:29:43+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 438m, avg 444m) for 375 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 438m, avg 444m
Duration25/25Duration 375 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±3m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 437.69999999999998863131622783839702606201171875,
    "avg_distance_m": 443.5,
    "distance_consistency_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 375.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 22508,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-24T23:14:35+00:00",
        "end": "2026-09-25T05:29:43+00:00"
    },
    "points_count": {
        "vessel_a": 28,
        "vessel_b": 28
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 438m, avg 444m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 375 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 438m, avg 444m) for 375 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 23:10 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 36m
  • Data Points: 64 AIS positions
  • Period: 2026-09-24T23:52:57+00:00 to 2026-09-25T06:28:59+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 396,
    "points_in_zone": 64,
    "first_point": {
        "ts": "2026-09-24T23:52:57+00:00",
        "lat": 37.115098299999999653664417564868927001953125,
        "lon": 15.2681850000000007838707460905425250530242919921875
    },
    "last_point": {
        "ts": "2026-09-25T06:28:59+00:00",
        "lat": 37.11509670000000227219061343930661678314208984375,
        "lon": 15.26820000000000021600499167107045650482177734375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 24, 2026 23:10 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 5 meters
  • Data Points: 64 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 396,
    "points": 64,
    "centroid": {
        "lat": 37.11509739843750566024027648381888866424560546875,
        "lon": 15.2681718984375027758915166486985981464385986328125
    },
    "bbox": {
        "min_lat": 37.1150549999999981309883878566324710845947265625,
        "min_lon": 15.268138300000000384670784114859998226165771484375,
        "max_lat": 37.11513500000000220779838855378329753875732421875,
        "max_lon": 15.26820000000000021600499167107045650482177734375
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts🛰️? Augusta, Sicily STS Zone
Sep 24, 2026 22:04 UTC 90/100 ▼
Vessel A: IMO 9984871 (STAVANGER STAR) Marshall Is
Vessel B: IMO 9791145 (KIMOLOS) Marshall Is
  • Minimum Distance: 130 meters
  • Average Distance: 135 meters
  • Duration: 2h 39m
  • Period: 2026-09-24T22:04:54+00:00 to 2026-09-25T00:43:57+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (STAVANGER STAR and KIMOLOS) maintained close proximity (min 130m, avg 135m) for 159 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 130m, avg 135m
Duration25/25Duration 159 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260924T165515_20260924T165540_009592_013168_F80C_COG • Acquired: 2026-09-24T16:55:15.731406Z • Platform: sentinel-1c

Searched: 2026-09-25T04:30:34.330306+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538007774,
        "imo": 9791145,
        "name": "KIMOLOS",
        "flag": "Marshall Is"
    },
    "min_distance_m": 130.30000000000001136868377216160297393798828125,
    "avg_distance_m": 135.400000000000005684341886080801486968994140625,
    "distance_consistency_m": 1.5,
    "duration_minutes": 159.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 9543,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-09-24T22:04:54+00:00",
        "end": "2026-09-25T00:43:57+00:00"
    },
    "points_count": {
        "vessel_a": 24,
        "vessel_b": 24
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 130m, avg 135m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 159 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (STAVANGER STAR and KIMOLOS) maintained close proximity (min 130m, avg 135m) for 159 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 37.1155085999999982959707267582416534423828125,
            "lon": 15.2676086000000008624510883237235248088836669921875
        },
        "time_window": {
            "start_ts": "2026-09-24T22:04:54+00:00",
            "end_ts": "2026-09-25T00:43:57+00:00"
        },
        "searched_at": "2026-09-25T04:30:34.330306+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260924T165515_20260924T165540_009592_013168_F80C_COG",
        "scene_datetime": "2026-09-24T16:55:15.731406Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 14.0909250000000003666400516522116959095001220703125,
            "min_lat": 35.63781399999999877081791055388748645782470703125,
            "max_lon": 17.348804000000001224179868586361408233642578125,
            "max_lat": 37.55720900000000028740032576024532318115234375
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1385699_thumbnail_20260925043054.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1385699_thumbnail_20260925043054.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 22:02 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 30m
  • Data Points: 63 AIS positions
  • Period: 2026-09-24T22:49:56+00:00 to 2026-09-25T05:19:59+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 390.1000000000000227373675443232059478759765625,
    "points_in_zone": 63,
    "first_point": {
        "ts": "2026-09-24T22:49:56+00:00",
        "lat": 37.1150932999999980665961629711091518402099609375,
        "lon": 15.268183300000000457430360256694257259368896484375
    },
    "last_point": {
        "ts": "2026-09-25T05:19:59+00:00",
        "lat": 37.1151033000000012407326721586287021636962890625,
        "lon": 15.26814830000000000609361450187861919403076171875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 24, 2026 22:02 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 5 meters
  • Data Points: 63 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 390.1000000000000227373675443232059478759765625,
    "points": 63,
    "centroid": {
        "lat": 37.1150976761904729528396273963153362274169921875,
        "lon": 15.2681703920634941340495061012916266918182373046875
    },
    "bbox": {
        "min_lat": 37.1150549999999981309883878566324710845947265625,
        "min_lon": 15.2681349999999991240429153549484908580780029296875,
        "max_lat": 37.11513500000000220779838855378329753875732421875,
        "max_lon": 15.2681982999999998895646058372221887111663818359375
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 24, 2026 21:55 UTC 90/100 ▼
Vessel A: IMO 9984871 (STAVANGER STAR) Marshall Is
Vessel B: IMO 9791145 (KIMOLOS) Marshall Is
  • Minimum Distance: 130 meters
  • Average Distance: 136 meters
  • Duration: 2h 48m
  • Period: 2026-09-24T21:55:59+00:00 to 2026-09-25T00:43:57+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 90/100

High-confidence STS candidate. Two tankers (STAVANGER STAR and KIMOLOS) maintained close proximity (min 130m, avg 136m) for 168 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 130m, avg 136m
Duration25/25Duration 168 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538007774,
        "imo": 9791145,
        "name": "KIMOLOS",
        "flag": "Marshall Is"
    },
    "min_distance_m": 130.30000000000001136868377216160297393798828125,
    "avg_distance_m": 135.5,
    "distance_consistency_m": 1.5,
    "duration_minutes": 168,
    "overlap_duration_s": 10078,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_b_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        }
    },
    "time_window": {
        "start": "2026-09-24T21:55:59+00:00",
        "end": "2026-09-25T00:43:57+00:00"
    },
    "points_count": {
        "vessel_a": 26,
        "vessel_b": 26
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 90,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 130m, avg 136m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 168 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (STAVANGER STAR and KIMOLOS) maintained close proximity (min 130m, avg 136m) for 168 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts🛰️? Augusta, Sicily STS Zone
Sep 24, 2026 21:08 UTC 65/100 ▼
Vessel A: IMO 9507764 (GAS HUSKY) Liberia
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 440 meters
  • Average Distance: 443 meters
  • Duration: 1h 18m
  • Period: 2026-09-24T21:08:35+00:00 to 2026-09-24T22:26:35+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 65/100

Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 440m, avg 443m) for 78 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 440m, avg 443m
Duration15/25Duration 78 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260924T165515_20260924T165540_009592_013168_F80C_COG • Acquired: 2026-09-24T16:55:15.731406Z • Platform: sentinel-1c

Searched: 2026-09-25T03:30:14.918558+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 440,
    "avg_distance_m": 443.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 78,
    "overlap_duration_s": 4680,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-24T21:08:35+00:00",
        "end": "2026-09-24T22:26:35+00:00"
    },
    "points_count": {
        "vessel_a": 9,
        "vessel_b": 9
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 65,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 440m, avg 443m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 78 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 440m, avg 443m) for 78 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 37.114304099999998243220034055411815643310546875,
            "lon": 15.26588339999999988094714353792369365692138671875
        },
        "time_window": {
            "start_ts": "2026-09-24T21:08:35+00:00",
            "end_ts": "2026-09-24T22:26:35+00:00"
        },
        "searched_at": "2026-09-25T03:30:14.918558+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260924T165515_20260924T165540_009592_013168_F80C_COG",
        "scene_datetime": "2026-09-24T16:55:15.731406Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 14.0909250000000003666400516522116959095001220703125,
            "min_lat": 35.63781399999999877081791055388748645782470703125,
            "max_lon": 17.348804000000001224179868586361408233642578125,
            "max_lat": 37.55720900000000028740032576024532318115234375
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1385389_thumbnail_20260925033019.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1385389_thumbnail_20260925033019.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 21:04 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 33m
  • Data Points: 63 AIS positions
  • Period: 2026-09-24T21:52:55+00:00 to 2026-09-25T04:26:00+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 63,
    "first_point": {
        "ts": "2026-09-24T21:52:55+00:00",
        "lat": 37.11509170000000068512235884554684162139892578125,
        "lon": 15.2681749999999993860910763032734394073486328125
    },
    "last_point": {
        "ts": "2026-09-25T04:26:00+00:00",
        "lat": 37.11511829999999889651007833890616893768310546875,
        "lon": 15.268183300000000457430360256694257259368896484375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 24, 2026 21:04 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 5 meters
  • Data Points: 63 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 63,
    "centroid": {
        "lat": 37.1150968285714242256290162913501262664794921875,
        "lon": 15.2681720587301636982147101662121713161468505859375
    },
    "bbox": {
        "min_lat": 37.1150549999999981309883878566324710845947265625,
        "min_lon": 15.2681349999999991240429153549484908580780029296875,
        "max_lat": 37.11513500000000220779838855378329753875732421875,
        "max_lon": 15.2681982999999998895646058372221887111663818359375
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts🛰️? Augusta, Sicily STS Zone
Sep 24, 2026 20:45 UTC 80/100 ▼
Vessel A: IMO 9791145 (KIMOLOS) Marshall Is
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 132 meters
  • Average Distance: 135 meters
  • Duration: 1h 24m
  • Period: 2026-09-24T20:45:16+00:00 to 2026-09-24T22:09:16+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 80/100

High-confidence STS candidate. Two tankers (KIMOLOS and STAVANGER STAR) maintained close proximity (min 132m, avg 135m) for 84 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 132m, avg 135m
Duration15/25Duration 84 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260924T165515_20260924T165540_009592_013168_F80C_COG • Acquired: 2026-09-24T16:55:15.731406Z • Platform: sentinel-1c

Searched: 2026-09-24T22:45:01.256582+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538007774,
        "imo": 9791145,
        "name": "KIMOLOS",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 132.099999999999994315658113919198513031005859375,
    "avg_distance_m": 135,
    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 84,
    "overlap_duration_s": 5040,
    "speed_a_avg": 0.01000000000000000020816681711721685132943093776702880859375,
    "speed_a_std": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.01000000000000000020816681711721685132943093776702880859375,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-24T20:45:16+00:00",
        "end": "2026-09-24T22:09:16+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 132m, avg 135m"
            },
            "duration": {
                "score": 15,
                "max": 25,
                "detail": "Duration 84 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (KIMOLOS and STAVANGER STAR) maintained close proximity (min 132m, avg 135m) for 84 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 37.11551140000000259533408097922801971435546875,
            "lon": 15.267616600000000204317984753288328647613525390625
        },
        "time_window": {
            "start_ts": "2026-09-24T20:45:16+00:00",
            "end_ts": "2026-09-24T22:09:16+00:00"
        },
        "searched_at": "2026-09-24T22:45:01.256582+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260924T165515_20260924T165540_009592_013168_F80C_COG",
        "scene_datetime": "2026-09-24T16:55:15.731406Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 14.0909250000000003666400516522116959095001220703125,
            "min_lat": 35.63781399999999877081791055388748645782470703125,
            "max_lon": 17.348804000000001224179868586361408233642578125,
            "max_lat": 37.55720900000000028740032576024532318115234375
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1383902_thumbnail_20260924224506.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1383902_thumbnail_20260924224506.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 24, 2026 20:13 UTC 70/100 ▼
Vessel A: IMO 9507764 (GAS HUSKY) Liberia
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 440 meters
  • Average Distance: 444 meters
  • Duration: 1h 36m
  • Period: 2026-09-24T20:50:36+00:00 to 2026-09-24T22:26:35+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 440m, avg 444m) for 96 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 440m, avg 444m
Duration20/25Duration 96 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 440,
    "avg_distance_m": 443.5,
    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 96,
    "overlap_duration_s": 5759,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-24T20:50:36+00:00",
        "end": "2026-09-24T22:26:35+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 440m, avg 444m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 96 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 440m, avg 444m) for 96 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 20:13 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 36m
  • Data Points: 63 AIS positions
  • Period: 2026-09-24T20:52:53+00:00 to 2026-09-25T03:28:57+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 396.1000000000000227373675443232059478759765625,
    "points_in_zone": 63,
    "first_point": {
        "ts": "2026-09-24T20:52:53+00:00",
        "lat": 37.1151100000000013778844731859862804412841796875,
        "lon": 15.2681766999999997125314621371217072010040283203125
    },
    "last_point": {
        "ts": "2026-09-25T03:28:57+00:00",
        "lat": 37.11509670000000227219061343930661678314208984375,
        "lon": 15.2681799999999991968024914967827498912811279296875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 24, 2026 20:13 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 6 meters
  • Data Points: 63 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.5999999999999996447286321199499070644378662109375,
    "duration_minutes": 396.1000000000000227373675443232059478759765625,
    "points": 63,
    "centroid": {
        "lat": 37.1150979428571332618957967497408390045166015625,
        "lon": 15.2681738079365079130411686492152512073516845703125
    },
    "bbox": {
        "min_lat": 37.1150549999999981309883878566324710845947265625,
        "min_lon": 15.2681349999999991240429153549484908580780029296875,
        "max_lat": 37.11512830000000207064658752642571926116943359375,
        "max_lon": 15.2682266999999995960024534724652767181396484375
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 24, 2026 19:58 UTC 85/100 ▼
Vessel A: IMO 9984871 (STAVANGER STAR) Marshall Is
Vessel B: IMO 9791145 (KIMOLOS) Marshall Is
  • Minimum Distance: 131 meters
  • Average Distance: 134 meters
  • Duration: 1h 48m
  • Period: 2026-09-24T19:58:56+00:00 to 2026-09-24T21:46:57+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 85/100

High-confidence STS candidate. Two tankers (STAVANGER STAR and KIMOLOS) maintained close proximity (min 131m, avg 134m) for 108 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 131m, avg 134m
Duration20/25Duration 108 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538007774,
        "imo": 9791145,
        "name": "KIMOLOS",
        "flag": "Marshall Is"
    },
    "min_distance_m": 131,
    "avg_distance_m": 134.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 1.5,
    "duration_minutes": 108,
    "overlap_duration_s": 6481,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-24T19:58:56+00:00",
        "end": "2026-09-24T21:46:57+00:00"
    },
    "points_count": {
        "vessel_a": 16,
        "vessel_b": 16
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 85,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 131m, avg 134m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 108 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (STAVANGER STAR and KIMOLOS) maintained close proximity (min 131m, avg 134m) for 108 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 19:01 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 30m
  • Data Points: 59 AIS positions
  • Period: 2026-09-24T19:58:56+00:00 to 2026-09-25T02:28:58+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 390,
    "points_in_zone": 59,
    "first_point": {
        "ts": "2026-09-24T19:58:56+00:00",
        "lat": 37.1150949999999966166797094047069549560546875,
        "lon": 15.268164999999999764668245916254818439483642578125
    },
    "last_point": {
        "ts": "2026-09-25T02:28:58+00:00",
        "lat": 37.115121700000003102104528807103633880615234375,
        "lon": 15.2681982999999998895646058372221887111663818359375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 24, 2026 19:01 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 6 meters
  • Data Points: 59 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 390,
    "points": 59,
    "centroid": {
        "lat": 37.11509777457626313434957410208880901336669921875,
        "lon": 15.2681729389830511678383118123747408390045166015625
    },
    "bbox": {
        "min_lat": 37.1150549999999981309883878566324710845947265625,
        "min_lon": 15.2681349999999991240429153549484908580780029296875,
        "max_lat": 37.11512830000000207064658752642571926116943359375,
        "max_lon": 15.2682266999999995960024534724652767181396484375
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 24, 2026 18:31 UTC 70/100 ▼
Vessel A: IMO 9984871 (STAVANGER STAR) Marshall Is
Vessel B: IMO 9791145 (KIMOLOS) Marshall Is
  • Minimum Distance: 133 meters
  • Average Distance: 134 meters
  • Duration: 42 minutes
  • Period: 2026-09-24T18:31:52+00:00 to 2026-09-24T19:13:52+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (STAVANGER STAR and KIMOLOS) maintained close proximity (min 133m, avg 134m) for 42 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 133m, avg 134m
Duration5/25Duration 42 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538007774,
        "imo": 9791145,
        "name": "KIMOLOS",
        "flag": "Marshall Is"
    },
    "min_distance_m": 133,
    "avg_distance_m": 134.099999999999994315658113919198513031005859375,
    "distance_consistency_m": 1.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 42,
    "overlap_duration_s": 2520,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-24T18:31:52+00:00",
        "end": "2026-09-24T19:13:52+00:00"
    },
    "points_count": {
        "vessel_a": 3,
        "vessel_b": 3
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 133m, avg 134m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 42 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STAVANGER STAR and KIMOLOS) maintained close proximity (min 133m, avg 134m) for 42 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 18:01 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 27m
  • Data Points: 49 AIS positions
  • Period: 2026-09-24T18:31:52+00:00 to 2026-09-25T00:58:55+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 387.1000000000000227373675443232059478759765625,
    "points_in_zone": 49,
    "first_point": {
        "ts": "2026-09-24T18:31:52+00:00",
        "lat": 37.115104999999999790816218592226505279541015625,
        "lon": 15.268196700000000731733962311409413814544677734375
    },
    "last_point": {
        "ts": "2026-09-25T00:58:55+00:00",
        "lat": 37.1150949999999966166797094047069549560546875,
        "lon": 15.268171699999999901820046943612396717071533203125
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 24, 2026 18:01 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 6 meters
  • Data Points: 49 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 387.1000000000000227373675443232059478759765625,
    "points": 49,
    "centroid": {
        "lat": 37.11509840816326999402008368633687496185302734375,
        "lon": 15.2681713979591879848385360674001276493072509765625
    },
    "bbox": {
        "min_lat": 37.1150549999999981309883878566324710845947265625,
        "min_lon": 15.2681349999999991240429153549484908580780029296875,
        "max_lat": 37.11512830000000207064658752642571926116943359375,
        "max_lon": 15.2682266999999995960024534724652767181396484375
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 16:13 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 33m
  • Data Points: 33 AIS positions
  • Period: 2026-09-24T16:52:58+00:00 to 2026-09-24T23:25:58+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 393,
    "points_in_zone": 33,
    "first_point": {
        "ts": "2026-09-24T16:52:58+00:00",
        "lat": 37.1150999999999982037479639984667301177978515625,
        "lon": 15.2681866999999993339542925241403281688690185546875
    },
    "last_point": {
        "ts": "2026-09-24T23:25:58+00:00",
        "lat": 37.11509170000000068512235884554684162139892578125,
        "lon": 15.2681667000000000911086317501030862331390380859375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 24, 2026 16:13 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 6 meters
  • Data Points: 33 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 393,
    "points": 33,
    "centroid": {
        "lat": 37.11510146666666543069368344731628894805908203125,
        "lon": 15.26817662424242172392041538842022418975830078125
    },
    "bbox": {
        "min_lat": 37.1150549999999981309883878566324710845947265625,
        "min_lon": 15.268145000000000521822585142217576503753662109375,
        "max_lat": 37.11512830000000207064658752642571926116943359375,
        "max_lon": 15.2682266999999995960024534724652767181396484375
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 24, 2026 15:27 UTC 72/100 ▼
Vessel A: IMO 9984871 (STAVANGER STAR) Marshall Is
Vessel B: IMO 9791145 (KIMOLOS) Marshall Is
  • Minimum Distance: 136 meters
  • Average Distance: 189 meters
  • Duration: 1h 30m
  • Period: 2026-09-24T15:25:55+00:00 to 2026-09-24T16:55:57+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.5 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 72/100

Moderate-confidence STS candidate. Two tankers (STAVANGER STAR and KIMOLOS) maintained close proximity (min 136m, avg 189m) for 90 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.5 knots). Moderate distance variation observed during the encounter. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness20/25Min distance 136m, avg 189m
Duration20/25Duration 90 minutes
Speed Stability14/20both nearly stationary; somewhat variable speeds
Distance Consistency8/15Distance variance ±83m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 538007774,
        "imo": 9791145,
        "name": "KIMOLOS",
        "flag": "Marshall Is"
    },
    "min_distance_m": 135.599999999999994315658113919198513031005859375,
    "avg_distance_m": 188.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 82.7999999999999971578290569595992565155029296875,
    "duration_minutes": 90,
    "overlap_duration_s": 5402,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.479999999999999982236431605997495353221893310546875,
    "speed_b_std": 0.66000000000000003108624468950438313186168670654296875,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.479999999999999982236431605997495353221893310546875,
            "max_sog": 1.600000000000000088817841970012523233890533447265625
        }
    },
    "time_window": {
        "start": "2026-09-24T15:25:55+00:00",
        "end": "2026-09-24T16:55:57+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 72,
        "components": {
            "distance_tightness": {
                "score": 20,
                "max": 25,
                "detail": "Min distance 136m, avg 189m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 90 minutes"
            },
            "speed_stability": {
                "score": 14,
                "max": 20,
                "detail": "both nearly stationary; somewhat variable speeds"
            },
            "distance_consistency": {
                "score": 8,
                "max": 15,
                "detail": "Distance variance \u00b183m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STAVANGER STAR and KIMOLOS) maintained close proximity (min 136m, avg 189m) for 90 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.5 knots). Moderate distance variation observed during the encounter. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Sts🛰️? Augusta, Sicily STS Zone
Sep 24, 2026 15:14 UTC 75/100 ▼
Vessel A: IMO 9507764 (GAS HUSKY) Liberia
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 439 meters
  • Average Distance: 441 meters
  • Duration: 5h 18m
  • Period: 2026-09-24T15:14:35+00:00 to 2026-09-24T20:32:34+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 439m, avg 441m) for 318 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 439m, avg 441m
Duration25/25Duration 318 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260924T165515_20260924T165540_009592_013168_F80C_COG • Acquired: 2026-09-24T16:55:15.731406Z • Platform: sentinel-1c

Searched: 2026-09-24T21:45:01.438942+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 438.8999999999999772626324556767940521240234375,
    "avg_distance_m": 441.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 2.5,
    "duration_minutes": 318,
    "overlap_duration_s": 19079,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-24T15:14:35+00:00",
        "end": "2026-09-24T20:32:34+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 439m, avg 441m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 318 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 439m, avg 441m) for 318 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 37.1143181999999995923644746653735637664794921875,
            "lon": 15.2658789999999999764668245916254818439483642578125
        },
        "time_window": {
            "start_ts": "2026-09-24T15:14:35+00:00",
            "end_ts": "2026-09-24T20:32:34+00:00"
        },
        "searched_at": "2026-09-24T21:45:01.438942+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260924T165515_20260924T165540_009592_013168_F80C_COG",
        "scene_datetime": "2026-09-24T16:55:15.731406Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 14.0909250000000003666400516522116959095001220703125,
            "min_lat": 35.63781399999999877081791055388748645782470703125,
            "max_lon": 17.348804000000001224179868586361408233642578125,
            "max_lat": 37.55720900000000028740032576024532318115234375
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1383646_thumbnail_20260924214506.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1383646_thumbnail_20260924214506.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 15:13 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 36m
  • Data Points: 33 AIS positions
  • Period: 2026-09-24T15:40:53+00:00 to 2026-09-24T22:16:55+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 396,
    "points_in_zone": 33,
    "first_point": {
        "ts": "2026-09-24T15:40:53+00:00",
        "lat": 37.115104999999999790816218592226505279541015625,
        "lon": 15.2681682999999992489392752759158611297607421875
    },
    "last_point": {
        "ts": "2026-09-24T22:16:55+00:00",
        "lat": 37.115076700000003029344952665269374847412109375,
        "lon": 15.268158299999999627516444888897240161895751953125
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 24, 2026 15:13 UTC 75.0% ▼
  • Duration: 6h 36m
  • Radius: 6 meters
  • Data Points: 33 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.70000000000000017763568394002504646778106689453125,
    "duration_minutes": 396,
    "points": 33,
    "centroid": {
        "lat": 37.11510060606059369092690758407115936279296875,
        "lon": 15.268176927272723020223565981723368167877197265625
    },
    "bbox": {
        "min_lat": 37.1150549999999981309883878566324710845947265625,
        "min_lon": 15.268145000000000521822585142217576503753662109375,
        "max_lat": 37.11512830000000207064658752642571926116943359375,
        "max_lon": 15.2682266999999995960024534724652767181396484375
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 14:25 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 30m
  • Data Points: 28 AIS positions
  • Period: 2026-09-24T14:43:54+00:00 to 2026-09-24T21:13:55+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 390,
    "points_in_zone": 28,
    "first_point": {
        "ts": "2026-09-24T14:43:54+00:00",
        "lat": 37.1151167000000015150362742133438587188720703125,
        "lon": 15.2681883000000002681417754502035677433013916015625
    },
    "last_point": {
        "ts": "2026-09-24T21:13:55+00:00",
        "lat": 37.115088299999996479527908377349376678466796875,
        "lon": 15.268171699999999901820046943612396717071533203125
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 24, 2026 14:25 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 6 meters
  • Data Points: 28 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 390,
    "points": 28,
    "centroid": {
        "lat": 37.1151011285714247378564323298633098602294921875,
        "lon": 15.268177564285711156344405026175081729888916015625
    },
    "bbox": {
        "min_lat": 37.1150549999999981309883878566324710845947265625,
        "min_lon": 15.268145000000000521822585142217576503753662109375,
        "max_lat": 37.11512669999999758374542579986155033111572265625,
        "max_lon": 15.26820670000000035315679269842803478240966796875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 13:16 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 29m
  • Data Points: 27 AIS positions
  • Period: 2026-09-24T13:52:54+00:00 to 2026-09-24T20:22:51+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 389.8999999999999772626324556767940521240234375,
    "points_in_zone": 27,
    "first_point": {
        "ts": "2026-09-24T13:52:54+00:00",
        "lat": 37.1151167000000015150362742133438587188720703125,
        "lon": 15.268164999999999764668245916254818439483642578125
    },
    "last_point": {
        "ts": "2026-09-24T20:22:51+00:00",
        "lat": 37.1150549999999981309883878566324710845947265625,
        "lon": 15.2681467000000008482629709760658442974090576171875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 24, 2026 13:16 UTC 75.0% ▼
  • Duration: 6h 29m
  • Radius: 6 meters
  • Data Points: 27 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 389.8999999999999772626324556767940521240234375,
    "points": 27,
    "centroid": {
        "lat": 37.11510290000000367172106052748858928680419921875,
        "lon": 15.268176237037035747334812185727059841156005859375
    },
    "bbox": {
        "min_lat": 37.1150549999999981309883878566324710845947265625,
        "min_lon": 15.268145000000000521822585142217576503753662109375,
        "max_lat": 37.11512830000000207064658752642571926116943359375,
        "max_lon": 15.26820670000000035315679269842803478240966796875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts🛰️? Augusta, Sicily STS Zone
Sep 24, 2026 13:08 UTC 55/100 ▼
Vessel A: IMO 9507764 (GAS HUSKY) Liberia
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 443 meters
  • Average Distance: 443 meters
  • Duration: 35 minutes
  • Period: 2026-09-24T13:08:38+00:00 to 2026-09-24T13:44:34+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 55/100

Low-confidence STS candidate - may warrant review. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 443m, avg 443m) for 36 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 443m, avg 443m
Duration5/25Duration 36 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±0m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260924T165515_20260924T165540_009592_013168_F80C_COG • Acquired: 2026-09-24T16:55:15.731406Z • Platform: sentinel-1c

Searched: 2026-09-24T19:45:01.330694+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 443.1000000000000227373675443232059478759765625,
    "avg_distance_m": 443.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 0.5,
    "duration_minutes": 35.89999999999999857891452847979962825775146484375,
    "overlap_duration_s": 2156,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-24T13:08:38+00:00",
        "end": "2026-09-24T13:44:34+00:00"
    },
    "points_count": {
        "vessel_a": 2,
        "vessel_b": 2
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 443m, avg 443m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 36 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b10m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 443m, avg 443m) for 36 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 37.11431790000000319196260534226894378662109375,
            "lon": 15.2658900000000006258460416574962437152862548828125
        },
        "time_window": {
            "start_ts": "2026-09-24T13:08:38+00:00",
            "end_ts": "2026-09-24T13:44:34+00:00"
        },
        "searched_at": "2026-09-24T19:45:01.330694+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260924T165515_20260924T165540_009592_013168_F80C_COG",
        "scene_datetime": "2026-09-24T16:55:15.731406Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 14.0909250000000003666400516522116959095001220703125,
            "min_lat": 35.63781399999999877081791055388748645782470703125,
            "max_lon": 17.348804000000001224179868586361408233642578125,
            "max_lat": 37.55720900000000028740032576024532318115234375
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1383040_thumbnail_20260924194508.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1383040_thumbnail_20260924194508.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Sts🛰️? Augusta, Sicily STS Zone
Sep 24, 2026 12:43 UTC 55/100 ▼
Vessel A: IMO 9984871 (STAVANGER STAR) Marshall Is
Vessel B: IMO 9507764 (GAS HUSKY) Liberia
  • Minimum Distance: 442 meters
  • Average Distance: 444 meters
  • Duration: 33 minutes
  • Period: 2026-09-24T12:43:53+00:00 to 2026-09-24T13:16:58+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 55/100

Low-confidence STS candidate - may warrant review. Two tankers (STAVANGER STAR and GAS HUSKY) maintained close proximity (min 442m, avg 444m) for 33 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 442m, avg 444m
Duration5/25Duration 33 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1D_IW_GRDH_1SDV_20260924T050415_20260924T050440_004715_008D1E_76A4_COG • Acquired: 2026-09-24T05:04:15.709116Z • Platform: sentinel-1d

Searched: 2026-09-24T14:15:01.555091+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "min_distance_m": 441.80000000000001136868377216160297393798828125,
    "avg_distance_m": 443.8999999999999772626324556767940521240234375,
    "distance_consistency_m": 1.3000000000000000444089209850062616169452667236328125,
    "duration_minutes": 33.10000000000000142108547152020037174224853515625,
    "overlap_duration_s": 1985,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-24T12:43:53+00:00",
        "end": "2026-09-24T13:16:58+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 55,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 442m, avg 444m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 33 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Low-confidence STS candidate - may warrant review. Two tankers (STAVANGER STAR and GAS HUSKY) maintained close proximity (min 442m, avg 444m) for 33 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 37.1143191999999970676071825437247753143310546875,
            "lon": 15.265870400000000728368831914849579334259033203125
        },
        "time_window": {
            "start_ts": "2026-09-24T12:43:53+00:00",
            "end_ts": "2026-09-24T13:16:58+00:00"
        },
        "searched_at": "2026-09-24T14:15:01.555091+00:00",
        "scene_id": "S1D_IW_GRDH_1SDV_20260924T050415_20260924T050440_004715_008D1E_76A4_COG",
        "scene_datetime": "2026-09-24T05:04:15.709116Z",
        "platform": "sentinel-1d",
        "bbox": {
            "min_lon": 12.9624000000000005883293852093629539012908935546875,
            "min_lat": 36.48923099999999664078131900168955326080322265625,
            "max_lon": 16.240767000000001729631549096666276454925537109375,
            "max_lat": 38.40555599999999714100340497680008411407470703125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1381612_thumbnail_20260924141526.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1381612_thumbnail_20260924141526.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 12:07 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 30m
  • Data Points: 30 AIS positions
  • Period: 2026-09-24T12:43:53+00:00 to 2026-09-24T19:13:52+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 390,
    "points_in_zone": 30,
    "first_point": {
        "ts": "2026-09-24T12:43:53+00:00",
        "lat": 37.115104999999999790816218592226505279541015625,
        "lon": 15.26816170000000028039721655659377574920654296875
    },
    "last_point": {
        "ts": "2026-09-24T19:13:52+00:00",
        "lat": 37.1150949999999966166797094047069549560546875,
        "lon": 15.268171699999999901820046943612396717071533203125
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 24, 2026 12:07 UTC 75.0% ▼
  • Duration: 6h 30m
  • Radius: 4 meters
  • Data Points: 30 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 3.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 390,
    "points": 30,
    "centroid": {
        "lat": 37.11510650000000310910763801075518131256103515625,
        "lon": 15.2681775000000019559820430004037916660308837890625
    },
    "bbox": {
        "min_lat": 37.11507830000000041081875679083168506622314453125,
        "min_lon": 15.26814830000000000609361450187861919403076171875,
        "max_lat": 37.11512830000000207064658752642571926116943359375,
        "max_lon": 15.26820670000000035315679269842803478240966796875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts🛰️? Augusta, Sicily STS Zone
Sep 24, 2026 11:56 UTC 70/100 ▼
Vessel A: IMO 9507764 (GAS HUSKY) Liberia
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 442 meters
  • Average Distance: 443 meters
  • Duration: 1h 48m
  • Period: 2026-09-24T11:56:33+00:00 to 2026-09-24T13:44:34+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 70/100

Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 442m, avg 443m) for 108 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 442m, avg 443m
Duration20/25Duration 108 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±1m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1C_IW_GRDH_1SDV_20260924T165515_20260924T165540_009592_013168_F80C_COG • Acquired: 2026-09-24T16:55:15.731406Z • Platform: sentinel-1c

Searched: 2026-09-24T18:45:02.098675+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 441.80000000000001136868377216160297393798828125,
    "avg_distance_m": 442.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 0.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 108,
    "overlap_duration_s": 6481,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-24T11:56:33+00:00",
        "end": "2026-09-24T13:44:34+00:00"
    },
    "points_count": {
        "vessel_a": 4,
        "vessel_b": 4
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 70,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 442m, avg 443m"
            },
            "duration": {
                "score": 20,
                "max": 25,
                "detail": "Duration 108 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 442m, avg 443m) for 108 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 37.11432210000000253558027907274663448333740234375,
            "lon": 15.265879999999999228066371870227158069610595703125
        },
        "time_window": {
            "start_ts": "2026-09-24T11:56:33+00:00",
            "end_ts": "2026-09-24T13:44:34+00:00"
        },
        "searched_at": "2026-09-24T18:45:02.098675+00:00",
        "scene_id": "S1C_IW_GRDH_1SDV_20260924T165515_20260924T165540_009592_013168_F80C_COG",
        "scene_datetime": "2026-09-24T16:55:15.731406Z",
        "platform": "sentinel-1c",
        "bbox": {
            "min_lon": 14.0909250000000003666400516522116959095001220703125,
            "min_lat": 35.63781399999999877081791055388748645782470703125,
            "max_lon": 17.348804000000001224179868586361408233642578125,
            "max_lat": 37.55720900000000028740032576024532318115234375
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1382766_thumbnail_20260924184513.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1382766_thumbnail_20260924184513.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 11:19 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 27m
  • Data Points: 36 AIS positions
  • Period: 2026-09-24T11:34:54+00:00 to 2026-09-24T18:01:53+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 387,
    "points_in_zone": 36,
    "first_point": {
        "ts": "2026-09-24T11:34:54+00:00",
        "lat": 37.11511169999999992796801961958408355712890625,
        "lon": 15.268171699999999901820046943612396717071533203125
    },
    "last_point": {
        "ts": "2026-09-24T18:01:53+00:00",
        "lat": 37.115098299999999653664417564868927001953125,
        "lon": 15.2681850000000007838707460905425250530242919921875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 24, 2026 11:19 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 5 meters
  • Data Points: 36 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5,
    "duration_minutes": 387,
    "points": 36,
    "centroid": {
        "lat": 37.11510856388888868195863324217498302459716796875,
        "lon": 15.26817828333333437740293447859585285186767578125
    },
    "bbox": {
        "min_lat": 37.11507830000000041081875679083168506622314453125,
        "min_lon": 15.26814830000000000609361450187861919403076171875,
        "max_lat": 37.1151399999999966894392855465412139892578125,
        "max_lon": 15.2682182999999991324102666112594306468963623046875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts🛰️? Augusta, Sicily STS Zone
Sep 24, 2026 10:35 UTC 75/100 ▼
Vessel A: IMO 9507764 (GAS HUSKY) Liberia
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 442 meters
  • Average Distance: 444 meters
  • Duration: 3h 9m
  • Period: 2026-09-24T10:35:31+00:00 to 2026-09-24T13:44:34+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 442m, avg 444m) for 189 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 442m, avg 444m
Duration25/25Duration 189 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1D_IW_GRDH_1SDV_20260924T050415_20260924T050440_004715_008D1E_76A4_COG • Acquired: 2026-09-24T05:04:15.709116Z • Platform: sentinel-1d

Searched: 2026-09-24T17:15:01.567409+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 441.80000000000001136868377216160297393798828125,
    "avg_distance_m": 444.3999999999999772626324556767940521240234375,
    "distance_consistency_m": 2.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 189.099999999999994315658113919198513031005859375,
    "overlap_duration_s": 11343,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-24T10:35:31+00:00",
        "end": "2026-09-24T13:44:34+00:00"
    },
    "points_count": {
        "vessel_a": 7,
        "vessel_b": 7
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 442m, avg 444m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 189 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 442m, avg 444m) for 189 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 37.1143268000000006168193067423999309539794921875,
            "lon": 15.26588699999999931833372102119028568267822265625
        },
        "time_window": {
            "start_ts": "2026-09-24T10:35:31+00:00",
            "end_ts": "2026-09-24T13:44:34+00:00"
        },
        "searched_at": "2026-09-24T17:15:01.567409+00:00",
        "scene_id": "S1D_IW_GRDH_1SDV_20260924T050415_20260924T050440_004715_008D1E_76A4_COG",
        "scene_datetime": "2026-09-24T05:04:15.709116Z",
        "platform": "sentinel-1d",
        "bbox": {
            "min_lon": 12.9624000000000005883293852093629539012908935546875,
            "min_lat": 36.48923099999999664078131900168955326080322265625,
            "max_lon": 16.240767000000001729631549096666276454925537109375,
            "max_lat": 38.40555599999999714100340497680008411407470703125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1382408_thumbnail_20260924171514.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1382408_thumbnail_20260924171514.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 10:04 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 27m
  • Data Points: 44 AIS positions
  • Period: 2026-09-24T10:28:57+00:00 to 2026-09-24T16:55:57+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 387,
    "points_in_zone": 44,
    "first_point": {
        "ts": "2026-09-24T10:28:57+00:00",
        "lat": 37.115101699999996753831510432064533233642578125,
        "lon": 15.268196700000000731733962311409413814544677734375
    },
    "last_point": {
        "ts": "2026-09-24T16:55:57+00:00",
        "lat": 37.115088299999996479527908377349376678466796875,
        "lon": 15.2681850000000007838707460905425250530242919921875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 24, 2026 10:04 UTC 75.0% ▼
  • Duration: 6h 27m
  • Radius: 5 meters
  • Data Points: 44 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 4.79999999999999982236431605997495353221893310546875,
    "duration_minutes": 387,
    "points": 44,
    "centroid": {
        "lat": 37.11510927954545735474312095902860164642333984375,
        "lon": 15.2681804181818154830807543476112186908721923828125
    },
    "bbox": {
        "min_lat": 37.11507830000000041081875679083168506622314453125,
        "min_lon": 15.26814830000000000609361450187861919403076171875,
        "max_lat": 37.1151399999999966894392855465412139892578125,
        "max_lon": 15.2682182999999991324102666112594306468963623046875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts🛰️? Augusta, Sicily STS Zone
Sep 24, 2026 09:05 UTC 75/100 ▼
Vessel A: IMO 9507764 (GAS HUSKY) Liberia
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 442 meters
  • Average Distance: 444 meters
  • Duration: 4h 39m
  • Period: 2026-09-24T09:05:33+00:00 to 2026-09-24T13:44:34+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 442m, avg 444m) for 279 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 442m, avg 444m
Duration25/25Duration 279 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone

🛰️ Satellite Corroboration

? SAR Inconclusive

Satellite imagery available but requires review

Preview available for manual review

Scene: S1D_IW_GRDH_1SDV_20260924T050415_20260924T050440_004715_008D1E_76A4_COG • Acquired: 2026-09-24T05:04:15.709116Z • Platform: sentinel-1d

Searched: 2026-09-24T15:45:01.230962+00:00

Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 441.80000000000001136868377216160297393798828125,
    "avg_distance_m": 443.8999999999999772626324556767940521240234375,
    "distance_consistency_m": 1.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 279,
    "overlap_duration_s": 16741,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-24T09:05:33+00:00",
        "end": "2026-09-24T13:44:34+00:00"
    },
    "points_count": {
        "vessel_a": 10,
        "vessel_b": 10
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 442m, avg 444m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 279 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 442m, avg 444m) for 279 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    },
    "sar": {
        "status": "inconclusive",
        "centroid": {
            "lat": 37.11432099999999678630047128535807132720947265625,
            "lon": 15.265883699999999834062691661529242992401123046875
        },
        "time_window": {
            "start_ts": "2026-09-24T09:05:33+00:00",
            "end_ts": "2026-09-24T13:44:34+00:00"
        },
        "searched_at": "2026-09-24T15:45:01.230962+00:00",
        "scene_id": "S1D_IW_GRDH_1SDV_20260924T050415_20260924T050440_004715_008D1E_76A4_COG",
        "scene_datetime": "2026-09-24T05:04:15.709116Z",
        "platform": "sentinel-1d",
        "bbox": {
            "min_lon": 12.9624000000000005883293852093629539012908935546875,
            "min_lat": 36.48923099999999664078131900168955326080322265625,
            "max_lon": 16.240767000000001729631549096666276454925537109375,
            "max_lat": 38.40555599999999714100340497680008411407470703125
        },
        "assets": {
            "preview_url": "https:\/\/fleetleaks.com\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1381970_thumbnail_20260924154511.png",
            "stored_path": "\/home\/fleetleaks\/public_html\/wp-content\/uploads\/fleetleaks-evidence\/sar-imagery\/2026\/09\/event_1381970_thumbnail_20260924154511.png",
            "source": "copernicus_dataspace"
        },
        "notes": "Preview available for manual review"
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 09:01 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 33m
  • Data Points: 48 AIS positions
  • Period: 2026-09-24T09:40:48+00:00 to 2026-09-24T16:13:55+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 48,
    "first_point": {
        "ts": "2026-09-24T09:40:48+00:00",
        "lat": 37.1150949999999966166797094047069549560546875,
        "lon": 15.26817330000000083600752986967563629150390625
    },
    "last_point": {
        "ts": "2026-09-24T16:13:55+00:00",
        "lat": 37.11507830000000041081875679083168506622314453125,
        "lon": 15.26819330000000007885319064371287822723388671875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 24, 2026 09:01 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 5 meters
  • Data Points: 48 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 4.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 48,
    "centroid": {
        "lat": 37.11510948124999487163222511298954486846923828125,
        "lon": 15.2681791333333336524447076953947544097900390625
    },
    "bbox": {
        "min_lat": 37.11507830000000041081875679083168506622314453125,
        "min_lon": 15.26814830000000000609361450187861919403076171875,
        "max_lat": 37.1151399999999966894392855465412139892578125,
        "max_lon": 15.2682182999999991324102666112594306468963623046875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 24, 2026 08:49 UTC 75/100 ▼
Vessel A: IMO 9507764 (GAS HUSKY) Liberia
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 442 meters
  • Average Distance: 444 meters
  • Duration: 4h 48m
  • Period: 2026-09-24T08:56:34+00:00 to 2026-09-24T13:44:34+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 442m, avg 444m) for 288 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 442m, avg 444m
Duration25/25Duration 288 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 441.80000000000001136868377216160297393798828125,
    "avg_distance_m": 443.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 1.8000000000000000444089209850062616169452667236328125,
    "duration_minutes": 288,
    "overlap_duration_s": 17280,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-24T08:56:34+00:00",
        "end": "2026-09-24T13:44:34+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 442m, avg 444m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 288 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 442m, avg 444m) for 288 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 08:37 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 33m
  • Data Points: 46 AIS positions
  • Period: 2026-09-24T08:40:50+00:00 to 2026-09-24T15:13:53+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 46,
    "first_point": {
        "ts": "2026-09-24T08:40:50+00:00",
        "lat": 37.1150949999999966166797094047069549560546875,
        "lon": 15.2681766999999997125314621371217072010040283203125
    },
    "last_point": {
        "ts": "2026-09-24T15:13:53+00:00",
        "lat": 37.11511169999999992796801961958408355712890625,
        "lon": 15.2681749999999993860910763032734394073486328125
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 24, 2026 08:37 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 5 meters
  • Data Points: 46 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 46,
    "centroid": {
        "lat": 37.11510858913042198992116027511656284332275390625,
        "lon": 15.268178734782605232567220809869468212127685546875
    },
    "bbox": {
        "min_lat": 37.11508169999999751098584965802729129791259765625,
        "min_lon": 15.26814830000000000609361450187861919403076171875,
        "max_lat": 37.1151399999999966894392855465412139892578125,
        "max_lon": 15.2682182999999991324102666112594306468963623046875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 24, 2026 07:38 UTC 75/100 ▼
Vessel A: IMO 9507764 (GAS HUSKY) Liberia
Vessel B: IMO 9984871 (STAVANGER STAR) Marshall Is
  • Minimum Distance: 442 meters
  • Average Distance: 444 meters
  • Duration: 6h 6m
  • Period: 2026-09-24T07:38:30+00:00 to 2026-09-24T13:44:34+00:00
  • Vessel A Avg Speed: 0.0 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 75/100

Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 442m, avg 444m) for 366 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 442m, avg 444m
Duration25/25Duration 366 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±2m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "min_distance_m": 441.80000000000001136868377216160297393798828125,
    "avg_distance_m": 443.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 1.6999999999999999555910790149937383830547332763671875,
    "duration_minutes": 366.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 21964,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-24T07:38:30+00:00",
        "end": "2026-09-24T13:44:34+00:00"
    },
    "points_count": {
        "vessel_a": 13,
        "vessel_b": 13
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 442m, avg 444m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 366 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b12m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (GAS HUSKY and STAVANGER STAR) maintained close proximity (min 442m, avg 444m) for 366 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 07:01 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 33m
  • Data Points: 45 AIS positions
  • Period: 2026-09-24T07:52:51+00:00 to 2026-09-24T14:25:55+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 393.1000000000000227373675443232059478759765625,
    "points_in_zone": 45,
    "first_point": {
        "ts": "2026-09-24T07:52:51+00:00",
        "lat": 37.1151066999999983408997650258243083953857421875,
        "lon": 15.2682182999999991324102666112594306468963623046875
    },
    "last_point": {
        "ts": "2026-09-24T14:25:55+00:00",
        "lat": 37.11511999999999744659362477250397205352783203125,
        "lon": 15.2681799999999991968024914967827498912811279296875
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 24, 2026 07:01 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 5 meters
  • Data Points: 45 AIS positions
  • Centroid: 37.1151, 15.2682
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 5,
    "duration_minutes": 393.1000000000000227373675443232059478759765625,
    "points": 45,
    "centroid": {
        "lat": 37.11510770666665592898425529710948467254638671875,
        "lon": 15.26817967111110618816383066587150096893310546875
    },
    "bbox": {
        "min_lat": 37.11508169999999751098584965802729129791259765625,
        "min_lon": 15.26814830000000000609361450187861919403076171875,
        "max_lat": 37.1151399999999966894392855465412139892578125,
        "max_lon": 15.2682182999999991324102666112594306468963623046875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Sts Augusta, Sicily STS Zone
Sep 24, 2026 06:58 UTC 60/100 ▼
Vessel A: IMO 9984871 (STAVANGER STAR) Marshall Is
Vessel B: IMO 9507764 (GAS HUSKY) Liberia
  • Minimum Distance: 443 meters
  • Average Distance: 455 meters
  • Duration: 48 minutes
  • Period: 2026-09-24T06:58:11+00:00 to 2026-09-24T07:46:53+00:00
  • Vessel A Avg Speed: 0.1 knots
  • Vessel B Avg Speed: 0.0 knots
  • Zone: Augusta, Sicily STS Zone

Confidence Analysis

Score: 60/100

Moderate-confidence STS candidate. Two tankers (STAVANGER STAR and GAS HUSKY) maintained close proximity (min 443m, avg 455m) for 49 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area.

View scoring breakdown
FactorScoreDetail
Distance Tightness5/25Min distance 443m, avg 455m
Duration10/25Duration 49 minutes
Speed Stability20/20both nearly stationary; very stable speeds
Distance Consistency15/15Distance variance ±18m
Isolation5/10Isolation data not available
Context5/5In monitored zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "vessel_a": {
        "mmsi": 538011321,
        "imo": 9984871,
        "name": "STAVANGER STAR",
        "flag": "Marshall Is"
    },
    "vessel_b": {
        "mmsi": 636015107,
        "imo": 9507764,
        "name": "GAS HUSKY",
        "flag": "Liberia"
    },
    "min_distance_m": 442.8999999999999772626324556767940521240234375,
    "avg_distance_m": 454.80000000000001136868377216160297393798828125,
    "distance_consistency_m": 18,
    "duration_minutes": 48.7000000000000028421709430404007434844970703125,
    "overlap_duration_s": 2922,
    "speed_a_avg": 0.1000000000000000055511151231257827021181583404541015625,
    "speed_a_std": 0.14000000000000001332267629550187848508358001708984375,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0.1000000000000000055511151231257827021181583404541015625,
            "max_sog": 0.299999999999999988897769753748434595763683319091796875
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-24T06:58:11+00:00",
        "end": "2026-09-24T07:46:53+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "score": {
        "value": 60,
        "components": {
            "distance_tightness": {
                "score": 5,
                "max": 25,
                "detail": "Min distance 443m, avg 455m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 49 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b118m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Augusta, Sicily STS Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (STAVANGER STAR and GAS HUSKY) maintained close proximity (min 443m, avg 455m) for 49 minutes. Both vessels were slow-moving (avg speeds 0.1 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Augusta, Sicily STS Zone, a known STS activity area."
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 24, 2026 06:21 UTC 75.0% ▼
  • Duration: 6h 33m
  • Radius: 383 meters
  • Data Points: 48 AIS positions
  • Centroid: 37.1152, 15.2684
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 383.19999999999998863131622783839702606201171875,
    "duration_minutes": 393.6000000000000227373675443232059478759765625,
    "points": 48,
    "centroid": {
        "lat": 37.11515923749999501524143852293491363525390625,
        "lon": 15.2683597291666703910095748142339289188385009765625
    },
    "bbox": {
        "min_lat": 37.11508169999999751098584965802729129791259765625,
        "min_lon": 15.26814830000000000609361450187861919403076171875,
        "max_lat": 37.116853300000002491287887096405029296875,
        "max_lon": 15.2721166999999997671011442434974014759063720703125
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 06:01 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 33m
  • Data Points: 48 AIS positions
  • Period: 2026-09-24T06:43:22+00:00 to 2026-09-24T13:16:58+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 393.6000000000000227373675443232059478759765625,
    "points_in_zone": 48,
    "first_point": {
        "ts": "2026-09-24T06:43:22+00:00",
        "lat": 37.116853300000002491287887096405029296875,
        "lon": 15.2721166999999997671011442434974014759063720703125
    },
    "last_point": {
        "ts": "2026-09-24T13:16:58+00:00",
        "lat": 37.11511999999999744659362477250397205352783203125,
        "lon": 15.2681799999999991968024914967827498912811279296875
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 05:00 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 29m
  • Data Points: 62 AIS positions
  • Period: 2026-09-24T05:44:22+00:00 to 2026-09-24T12:13:54+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 389.5,
    "points_in_zone": 62,
    "first_point": {
        "ts": "2026-09-24T05:44:22+00:00",
        "lat": 37.1211550000000016780177247710525989532470703125,
        "lon": 15.352181699999999153760654735378921031951904296875
    },
    "last_point": {
        "ts": "2026-09-24T12:13:54+00:00",
        "lat": 37.1150932999999980665961629711091518402099609375,
        "lon": 15.2681682999999992489392752759158611297607421875
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 04:33 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 32m
  • Data Points: 73 AIS positions
  • Period: 2026-09-24T04:50:22+00:00 to 2026-09-24T11:22:56+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 392.6000000000000227373675443232059478759765625,
    "points_in_zone": 73,
    "first_point": {
        "ts": "2026-09-24T04:50:22+00:00",
        "lat": 37.14324669999999883884811424650251865386962890625,
        "lon": 15.478976700000000477075445814989507198333740234375
    },
    "last_point": {
        "ts": "2026-09-24T11:22:56+00:00",
        "lat": 37.115121700000003102104528807103633880615234375,
        "lon": 15.2681799999999991968024914967827498912811279296875
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 03:07 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 37m
  • Data Points: 72 AIS positions
  • Period: 2026-09-24T03:51:52+00:00 to 2026-09-24T10:28:57+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 397.1000000000000227373675443232059478759765625,
    "points_in_zone": 72,
    "first_point": {
        "ts": "2026-09-24T03:51:52+00:00",
        "lat": 37.16467999999999705096342950128018856048583984375,
        "lon": 15.4828732999999996167161953053437173366546630859375
    },
    "last_point": {
        "ts": "2026-09-24T10:28:57+00:00",
        "lat": 37.115101699999996753831510432064533233642578125,
        "lon": 15.268196700000000731733962311409413814544677734375
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 02:01 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 30m
  • Data Points: 69 AIS positions
  • Period: 2026-09-24T02:52:01+00:00 to 2026-09-24T09:22:57+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 390.8999999999999772626324556767940521240234375,
    "points_in_zone": 69,
    "first_point": {
        "ts": "2026-09-24T02:52:01+00:00",
        "lat": 37.18036000000000029785951483063399791717529296875,
        "lon": 15.472178299999999495639713131822645664215087890625
    },
    "last_point": {
        "ts": "2026-09-24T09:22:57+00:00",
        "lat": 37.115108300000002827800926752388477325439453125,
        "lon": 15.2681982999999998895646058372221887111663818359375
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 01:01 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 35m
  • Data Points: 84 AIS positions
  • Period: 2026-09-24T01:20:52+00:00 to 2026-09-24T07:55:53+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 395,
    "points_in_zone": 84,
    "first_point": {
        "ts": "2026-09-24T01:20:52+00:00",
        "lat": 37.2039400000000028967406251467764377593994140625,
        "lon": 15.4556532999999998168050296953879296779632568359375
    },
    "last_point": {
        "ts": "2026-09-24T07:55:53+00:00",
        "lat": 37.11511329999999730944182374514639377593994140625,
        "lon": 15.268196700000000731733962311409413814544677734375
    }
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 24, 2026 00:00 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 36m
  • Data Points: 88 AIS positions
  • Period: 2026-09-24T00:51:52+00:00 to 2026-09-24T07:28:49+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 396.8999999999999772626324556767940521240234375,
    "points_in_zone": 88,
    "first_point": {
        "ts": "2026-09-24T00:51:52+00:00",
        "lat": 37.2105999999999994543031789362430572509765625,
        "lon": 15.45050499999999971123543218709528446197509765625
    },
    "last_point": {
        "ts": "2026-09-24T07:28:49+00:00",
        "lat": 37.115098299999999653664417564868927001953125,
        "lon": 15.268183300000000457430360256694257259368896484375
    }
}
Methodology: 2026.01.18
Loiter Augusta, Sicily STS Zone
Sep 23, 2026 23:07 UTC 75.0% ▼
  • Duration: 1h 36m
  • Radius: 1,162 meters
  • Data Points: 31 AIS positions
  • Centroid: 37.2219, 15.4438
  • Zone: Augusta, Sicily STS Zone
Show Raw Evidence JSON
{
    "radius_m": 1161.59999999999990905052982270717620849609375,
    "duration_minutes": 96,
    "points": 31,
    "centroid": {
        "lat": 37.22187774516128655477587017230689525604248046875,
        "lon": 15.4438207483870986180818363209255039691925048828125
    },
    "bbox": {
        "min_lat": 37.2125649999999978945197653956711292266845703125,
        "min_lon": 15.44006830000000007885319064371287822723388671875,
        "max_lat": 37.2319049999999975852915667928755283355712890625,
        "max_lon": 15.4490099999999994651034285197965800762176513671875
    },
    "zone_id": "osint_augusta_sicily"
}
Methodology: 2026.01.18
Zone Dwell Augusta, Sicily STS Zone
Sep 23, 2026 23:03 UTC 80.0% ▼
  • Zone: Augusta, Sicily STS Zone
  • Duration: 6h 35m
  • Data Points: 94 AIS positions
  • Period: 2026-09-23T23:51:11+00:00 to 2026-09-24T06:26:20+00:00
Show Raw Evidence JSON
{
    "zone_id": "osint_augusta_sicily",
    "zone_name": "Augusta, Sicily STS Zone",
    "dwell_minutes": 395.1000000000000227373675443232059478759765625,
    "points_in_zone": 94,
    "first_point": {
        "ts": "2026-09-23T23:51:11+00:00",
        "lat": 37.222998300000000426734914071857929229736328125,
        "lon": 15.44284999999999996589394868351519107818603515625
    },
    "last_point": {
        "ts": "2026-09-24T06:26:20+00:00",
        "lat": 37.11564829999999659548848285339772701263427734375,
        "lon": 15.285650000000000403588273911736905574798583984375
    }
}
Methodology: 2026.01.18

Recent Position Data

Time (UTC) Lat Lon Speed Course Zone
Sep 25 11:13 37.0895 15.4593 13.3 kn 105.3° Augusta, Sicily STS Zone
Sep 25 11:07 37.0959 15.4305 13.0 kn 106.4° Augusta, Sicily STS Zone
Sep 25 11:02 37.1005 15.4103 12.7 kn 105.9° Augusta, Sicily STS Zone
Sep 25 11:00 37.1025 15.4018 12.6 kn 106.0° Augusta, Sicily STS Zone
Sep 25 10:58 37.1047 15.3919 12.4 kn 105.8° Augusta, Sicily STS Zone
Sep 25 10:57 37.1056 15.3878 12.4 kn 105.5° Augusta, Sicily STS Zone
Sep 25 10:54 37.1087 15.3754 12.3 kn 107.6° Augusta, Sicily STS Zone
Sep 25 10:53 37.1097 15.3713 12.2 kn 107.7° Augusta, Sicily STS Zone
Sep 25 10:52 37.1109 15.3666 12.1 kn 107.7° Augusta, Sicily STS Zone
Sep 25 10:50 37.1130 15.3586 12.0 kn 108.2° Augusta, Sicily STS Zone
Sep 25 10:48 37.1147 15.3518 11.9 kn 107.0° Augusta, Sicily STS Zone
Sep 25 10:45 37.1172 15.3421 11.7 kn 107.4° Augusta, Sicily STS Zone
Sep 25 10:43 37.1194 15.3338 11.4 kn 108.5° Augusta, Sicily STS Zone
Sep 25 10:40 37.1228 15.3209 10.7 kn 107.1° Augusta, Sicily STS Zone
Sep 25 10:37 37.1241 15.3119 9.9 kn 92.5° Augusta, Sicily STS Zone
Sep 25 10:35 37.1236 15.3031 9.1 kn 83.0° Augusta, Sicily STS Zone
Sep 25 10:34 37.1233 15.3001 8.7 kn 82.8° Augusta, Sicily STS Zone
Sep 25 10:33 37.1230 15.2971 8.4 kn 82.5° Augusta, Sicily STS Zone
Sep 25 10:31 37.1224 15.2915 7.6 kn 82.7° Augusta, Sicily STS Zone
Sep 25 10:25 37.1205 15.2805 4.7 kn 64.7° Augusta, Sicily STS Zone

Showing 20 of 100 recent positions.

Data Source

Vessel observed through FleetLeaks' AIS monitoring system in zones of interest. Identity and position data derived from AIS broadcasts and public maritime databases.

Disclaimer: AIS data can be spoofed or falsified. Vessel identities should be independently verified before making compliance decisions.